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User's Manual
MP-20x Telephone Adapter
Version 3.0.1
Document #: LTRT-50609
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Version 3.0.1 3 July 2010
MP-20x Telephone Adapter Contents
Contents
1 Introducing AudioCodes' MP-20x Telephone Adapter ................................... 17
2 Cabling the MP-20x Telephone Adapter .......................................................... 19
3 Setting up a Network Connection .................................................................... 21
3.1 Defining Your PC's Network Connection................................................................ 21
3.1.1 Windows XP ............................................................................................................ 22
3.1.2 Linux ........................................................................................................................ 22
3.1.3 Wireless LAN Connection ........................................................................................ 23
3.2 Configuring the MP-20x's Network Connection...................................................... 24
3.2.1 Logging in to MP-20x Web Interface ....................................................................... 24
3.2.2 Configuring 'Quick Setup' Screen Parameters ........................................................ 25
3.2.2.1 Configuring Your Internet Connection ......................................................26
3.2.2.2 Enabling Wireless LAN Connection .........................................................30
3.2.3 Configuring Automatic Internet Dialer Detection ..................................................... 31
4 Using the MP-20x's Web Interface ................................................................... 33
4.1 Your Home Network Map ....................................................................................... 33
4.2 Web Interface Menus
............................................................................................. 35
4.3 Managing Tables .................................................................................................... 36
5 Configuring VoIP Parameters .......................................................................... 37
5.1 Configuring Signaling Protocol Parameters ........................................................... 38
5.1.1 Configuring Proxy Redundancy ............................................................................... 42
5.2 Configuring Dialing Parameters ............................................................................. 44
5.3 Configuring Media Streaming Parameters
............................................................. 48
5.3.1 Configuring Codecs ................................................................................................. 49
5.3.1.1 Supported Codecs ....................................................................................49
5.3.1.2 Packetization Time ...................................................................................50
5.4 Configuring Voice and Fax Parameters ................................................................. 50
5.5 Configuring Services Parameters
.......................................................................... 54
5.6 Configuring Line Setting
s Screen ........................................................................... 57
5.7 Configuring Speed Dial Settings
............................................................................ 60
5.8 Configuring Telephone I
nterfaces .......................................................................... 63
6 Connecting MP-20x to a VoIP Service Provider ............................................. 65
6.1 Opening a SIP Account .......................................................................................... 65
6.2 Configuring VoIP Parameters
................................................................................ 65
7 Making VoIP Calls ............................................................................................. 67
7.1 Placing a Call ......................................................................................................... 67
7.2 Answering a Waiting Call
....................................................................................... 67
7.3 Putting a Call on Hold
............................................................................................ 68
7.4 Performing
a Call Transfer ..................................................................................... 68
7.5 Establishing
a 3-Way Conference .......................................................................... 69
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7.6 Forwarding Calls to Another Phone ....................................................................... 70
8 Quality of Service (QoS) ................................................................................... 71
8.1 QoS Wizard ............................................................................................................ 71
8.2 Traffic Shap
ing ....................................................................................................... 72
8.2.1 Device Traffic Shaping ............................................................................................. 73
8.2.2 Shaping Classes ...................................................................................................... 74
8.2.2.1 Class Rules ..............................................................................................76
8.3 Traffic Priority ......................................................................................................... 77
8.4 DSCP Mapp
ing ...................................................................................................... 80
8.5 802.1p Mapping
..................................................................................................... 82
8.6 Class Statist
ics ....................................................................................................... 84
8.7 Configuring Basic VoIP QoS
.................................................................................. 84
9 LAN Wireless Connection ................................................................................ 87
9.1 General Tab ........................................................................................................... 88
9.2 Settings Ta
b ........................................................................................................... 89
9.3 Wireless Ta
b .......................................................................................................... 90
9.3.1 MAC Filtering ........................................................................................................... 92
9.3.2 Wireless Security ..................................................................................................... 93
9.3.3 Wireless QoS (WMM) .............................................................................................. 97
9.3.4 Transmission Properties .......................................................................................... 98
9.3.5 Virtual Access Points ............................................................................................... 99
9.3.6 Wireless Distribution System .................................................................................102
9.4 Advanced Tab ...................................................................................................... 104
10 WAN Settings .................................................................................................. 105
10.1 WAN Ethernet ...................................................................................................... 105
10.1.1 Settings Tab ...........................................................................................................106
10.1.1.1 Internet Protocol Settings ...................................................................... 107
10.1.1.2 DNS Server ........................................................................................... 108
10.1.2 Routing Tab ...........................................................................................................108
10.1.3 Advanced Tab ........................................................................................................109
10.2 WAN PPPoE ........................................................................................................ 110
10.2.1 General ..................................................................................................................110
10.2.2 PPP Tab ................................................................................................................111
10.2.2.1 PPP Authentication ............................................................................... 112
10.2.2.2 PPP Encryption ..................................................................................... 113
10.2.2.3 PPP Compression ................................................................................. 113
10.2.3 Internet Protocol ....................................................................................................113
10.2.4 DNS Server ............................................................................................................113
10.2.5 Routing...................................................................................................................113
10.2.6 Internet Connection Firewall ..................................................................................113
10.3 WAN PPTP .......................................................................................................... 114
10.3.1 Creating a PPTP Connection with the Connection Wizard ...................................114
10.3.2 General ..................................................................................................................117
10.3.3 PPP Configuration .................................................................................................117
10.3.4 PPP Authentication ................................................................................................117
10.3.5 PPP Encryption ......................................................................................................117
10.3.6 Internet Protocol ....................................................................................................117
10.3.7 DNS Server ............................................................................................................118
10.3.8 Routing...................................................................................................................118
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MP-20x Telephone Adapter Contents
10.3.9
Internet Connection Firewall ..................................................................................118
10.4 WAN L2TP ........................................................................................................... 118
10.4.1 General ..................................................................................................................120
10.4.2 PPP Configuration .................................................................................................121
10.4.3 PPP Authentication ................................................................................................121
10.4.4 PPP Encryption ......................................................................................................121
10.4.5 PPP Compression .................................................................................................121
10.4.6 Internet Protocol ....................................................................................................121
10.4.7 DNS Server ............................................................................................................121
10.4.8 Routing...................................................................................................................121
10.4.9 Internet Connection Firewall ..................................................................................121
11 VLAN and Bridge Settings .............................................................................. 123
11.1 Virtual LAN Interface (VLAN) ............................................................................... 123
11.1.1 Creating with the Connection Wizard ....................................................................123
11.1.2 Settings Tab ...........................................................................................................125
11.1.3 Routing Tab ...........................................................................................................128
11.1.4 Advanced Tab ........................................................................................................129
11.1.5 Example of Configuring 3 VLANs: VoIP, Data and Management .........................130
11.2 LAN-WAN Bridging .............................................................................................. 136
11.2.1 Creating with the Connection Wizard ....................................................................136
11.2.2 Settings Tab ...........................................................................................................140
11.2.3 Bridge Tab .............................................................................................................140
11.2.4 Examples of Configuring VLANs in Bridge Mode ..................................................141
11.2.4.1 Example 1 - Configuring 3 VLANs: VoIP, Data and Management ........ 141
11.2.4.2 Example 2: Configuring Tagged VoIP, Untagged Data Traffic ............. 144
11.2.4.3 Example 3 - Configuring VoIP and Data in the Same VLAN ................ 148
12 Remote MP-20x Telephone Adapter Management ....................................... 151
12.1 Overview .............................................................................................................. 151
12.1.1 Remote Configuration ............................................................................................151
12.1.2 Remote Management ............................................................................................153
12.1.2.1 Firmware Upgrade ................................................................................. 153
12.1.2.2 Status and Performance Monitoring ...................................................... 154
12.1.2.3 Alarms, Notifications and Logging ......................................................... 154
12.2 Remote Configuration and Management Interfaces ............................................ 155
12.2.1 Embedded Web Server .........................................................................................156
12.2.2 TR-069 and TR-104 CPE WAN Management Protocol ........................................156
12.2.2.1 Configuring MP-20x via TR-069 and TR-104 ........................................ 158
12.2.2.2 Monitoring MP-20x Status via TR-069 and TR-104 .............................. 166
12.2.2.3 Security Concerns and Measures ......................................................... 170
12.2.3 SNMP.....................................................................................................................171
12.2.3.1 Configuring MP-20x via SNMP ............................................................. 171
12.2.3.2 Monitoring the MP-20x via SNMP ......................................................... 172
12.2.3.3 Security Concerns and Measures ......................................................... 173
12.2.4 Syslog ....................................................................................................................174
12.2.5 Automatic File Download .......................................................................................174
12.2.5.1 Firmware File Download ........................................................................ 174
12.2.5.2 Configuration File Download ................................................................. 174
12.2.5.3 Security Concerns and Measures ......................................................... 175
12.2.6 Telnet CLI ..............................................................................................................176
13 Security ............................................................................................................ 177
13.1 General Security Level Settings ........................................................................... 178
13.2 Access Con
trol ..................................................................................................... 180
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13.3 Port Forwarding .................................................................................................... 182
13.4 DMZ Host ............................................................................................................. 185
13.5 Port Triggering
..................................................................................................... 186
13.6 Website Restriction
s ............................................................................................ 190
13.7 NAT
...................................................................................................................... 192
13.8 Connections ......................................................................................................... 196
13.9 Advanced Filtering
............................................................................................... 197
13.10Security Log
......................................................................................................... 200
14 Advanced Settings .......................................................................................... 207
14.1 About the MP-20x ................................................................................................ 210
14.2 Certificates ........................................................................................................... 210
14.3 Configuration File
................................................................................................. 214
14.3.1 Uploading from a PC on the Network ....................................................................216
14.3.2 Uploading from a Remote Server ..........................................................................218
14.3.3 Encrypting a Configuration File Using CLI .............................................................220
14.3.4 Automatic Upload Using SIP NOTIFY Message ...................................................220
14.4 DNS Server .......................................................................................................... 222
14.4.1 Viewing and Modifying the DNS Table ..................................................................222
14.5 Diagnostics ........................................................................................................... 224
14.5.1 Diagnosing Network Connectivity ..........................................................................224
14.5.2 Performing an ARP Test ........................................................................................225
14.5.3 Performing a Traceroute ........................................................................................226
14.6 Firmware Upgrade ............................................................................................... 226
14.6.1 Upgrading from a Computer on the Network .........................................................227
14.6.2 Upgrading From the Internet .................................................................................229
14.7 IP Address Distribution ......................................................................................... 230
14.7.1 DHCP Server Parameters .....................................................................................232
14.7.2 DHCP Relay Parameters .......................................................................................233
14.7.3 DHCP Connections ................................................................................................234
14.8 MAC Cloning ........................................................................................................ 235
14.9 Network Obj
ects ................................................................................................... 236
14.10PPPoE Rela
y ....................................................................................................... 237
14.11Dyna
mic DNS ....................................................................................................... 238
14.11.1Opening a Dynamic DNS Account ........................................................................238
14.12Protocols .............................................................................................................. 241
14.13Reboot .................................................................................................................. 242
14.14Regional Settings
................................................................................................. 243
14.15Remote Ad
ministration ......................................................................................... 243
14.16Restoring Factory Settings
................................................................................... 245
14.17Routing ................................................................................................................. 246
14.17.1Managing Routing Table Rules .............................................................................246
14.17.2Routing Protocols ..................................................................................................247
14.18Scheduler Rules ................................................................................................... 248
14.19SNMP ................................................................................................................... 250
14.20System Sett
ings ................................................................................................... 252
14.21Date & Time
......................................................................................................... 254
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14.22Configuring Users ................................................................................................ 255
14.23Universal Plug and Play ....................................................................................... 258
15 System Monitoring .......................................................................................... 259
15.1 Network Connections ........................................................................................... 259
15.2 System Log
.......................................................................................................... 261
15.3 CPU
...................................................................................................................... 262
15.4 Voice over IP
........................................................................................................ 263
16 Syntax for Digit Maps and Dial Plans ............................................................ 265
17 Software and Hardware Specifications ......................................................... 267
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List of Figures
Figure 1-1: Rear Panel of MP-20xB Models .......................................................................................... 18
Figure 1-2: Rear Panel of MP-202C Models ......................................................................................... 18
Figure 2-1: Cabling the Device (Example using MP-202C-W) .............................................................. 19
Figure 3-1: IP and DNS Configuration .................................................................................................... 21
Figure 3-2: Available Wireless Networks ................................................................................................ 23
Figure 3-3: Logging In ............................................................................................................................ 24
Figure 3-4: Quick Setup Screen ............................................................................................................. 25
Figure 3-5: Internet Connection - Automatic IP Address Ethernet Connection ...................................... 26
Figure 3-6: Internet Connection - Manual IP Address Ethernet Connection .......................................... 27
Figure 3-7: Internet Connection - PPPoE ............................................................................................... 28
Figure 3-8: Internet Connection - Point-to-Point Tunneling Protocol ..................................................... 28
Figure 3-9: Layer 2 Tunneling Protocol .................................................................................................. 29
Figure 3-10: Internet Connection - No Internet Connection ................................................................... 29
Figure 4-1: Network Map ........................................................................................................................ 33
Figure 4-2: Typical Table Structure ........................................................................................................ 36
Figure 5-1: VoIP - Signaling Protocol ..................................................................................................... 38
Figure 5-2: Configuring Proxy Redundancy ........................................................................................... 43
Figure 5-3: Voice Over IP - Dialing Screen ............................................................................................ 44
Figure 5-4: VoIP - Media Streaming - Advanced.................................................................................... 48
Figure 5-5: Voice Over IP - Voice and Fax Screen ................................................................................ 50
Figure 5-6: Voice Over IP - Services Screen ......................................................................................... 54
Figure 5-7: Voice Over IP - Line Settings Screen .................................................................................. 57
Figure 5-8: VoIP - Line Settings - Defining a New Line .......................................................................... 58
Figure 5-9: Voice Over IP - Speed Dial Screen...................................................................................... 60
Figure 5-10: VoIP - Speed Dial Settings ................................................................................................ 60
Figure 5-11: VoIP - Speed Dial - Local Line ........................................................................................... 61
Figure 5-12: VoIP - Speed Dial Settings - Local Line ............................................................................. 61
Figure 5-13: VoIP - Speed Dial - Direct Call ........................................................................................... 62
Figure 5-14: Voice Over IP - Telephone Interface Screen ..................................................................... 63
Figure 6-1: Voice Over IP - Line Settings Screen .................................................................................. 65
Figure 6-2: VoIP - Line Settings - Defining a New Line .......................................................................... 66
Figure 8-1: QoS Wizard Tab Screen ...................................................................................................... 71
Figure 8-2: QoS - Add Device Traffic Shaping ....................................................................................... 73
Figure 8-3: QoS - Edit Device Traffic Shaping ....................................................................................... 73
Figure 8-4: QoS - Edit Device Traffic Shaping - Add Class ................................................................... 75
Figure 8-5: QoS - Edit Device Traffic Shaping - Edit Class .................................................................... 75
Figure 8-6: QoS - Traffic Shaping .......................................................................................................... 78
Figure 8-7: QoS - Add Traffic Priority Rule ............................................................................................. 79
Figure 8-8: QoS - DSCP Settings ........................................................................................................... 81
Figure 8-9: QoS - Edit DSCP Settings ................................................................................................... 82
Figure 8-10: QoS - 802.1p Settings ........................................................................................................ 83
Figure 8-11: QoS - Class Statistics ........................................................................................................ 84
Figure 8-12: QoS - Edit Device Traffic Shaping ..................................................................................... 85
Figure 8-13: QoS - Edit Device Traffic Shaping - Submitting the Configuration .................................... 86
Figure 9-1: Network Connections Screen Listing LAN Wireless Interface ............................................. 87
Figure 9-2: 'LAN Wireless 802.11g Access Point Properties - General' Screen .................................... 88
Figure 9-3: LAN Wireless 802.11g Access Point Properties - Settings Screen ..................................... 89
Figure 9-4: LAN Wireless 802.11g Access Point Properties - Wireless Screen .................................... 90
Figure 9-5: MAC Filtering Settings Screen ............................................................................................. 92
Figure 9-6: MAC Address Added to MAC Filtering Table ...................................................................... 92
Figure 9-7: Configuring WPA Security ................................................................................................... 93
Figure 9-8: Configuring WPA2 Security ................................................................................................. 94
Figure 9-9: Configuring 802.1x WEP Security........................................................................................ 94
Figure 9-10: Configuring Non-WEP Security .......................................................................................... 95
Figure 9-11: Configuring Encryption Key in Windows Wireless Client ................................................... 96
Figure 9-12: Configuring Authentication Only Security .......................................................................... 96
Figure 9-13: Wireless QoS (WMM) ........................................................................................................ 97
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MP-20x Telephone Adapter Contents
Figure 9-14: Transmission Properties .................................................................................................... 98
Figure 9-15: Virtual APs Table ............................................................................................................... 99
Figure 9-16: Virtual AP Warning ............................................................................................................. 99
Figure 9-17: New Virtual AP .................................................................................................................100
Figure 9-18: Firewall Blocking Access to All Other LANs ....................................................................100
Figure 9-19: Example Virtual AP ..........................................................................................................101
Figure 9-20: Wireless WDS ..................................................................................................................102
Figure 9-21: WDS Settings Screen ......................................................................................................102
Figure 9-22: New WDS in WDS List Table ...........................................................................................103
Figure 9-23: LAN Wireless 802.11g WDS Properties Screen ..............................................................103
Figure 10-1: WAN Ethernet Properties .................................................................................................105
Figure 10-2: WAN Ethernet Configuration ............................................................................................106
Figure 10-3: Automatically Obtaining an IP Address ...........................................................................107
Figure 10-4: Manually Defining DNS Server ........................................................................................108
Figure 10-5: Routing Tab (WAN) ..........................................................................................................108
Figure 10-6: Internet Connection Firewall ............................................................................................109
Figure 10-7: General PPPoE Settings ..................................................................................................110
Figure 10-8: Network Connections Screen ..........................................................................................114
Figure 10-9: Connection Wizard Screen ..............................................................................................115
Figure 10-10: Advanced Connection ....................................................................................................115
Figure 10-11: Point-to-Point Tunneling Protocol (PPTP) Screen .........................................................116
Figure 10-12: Connection Summary ....................................................................................................116
Figure 10-13: General PPTP Settings ..................................................................................................117
Figure 10-14: VPN Client or Point-To-Point .........................................................................................119
Figure 10-15: Layer 2 Tunneling Protocol (L2TP) ................................................................................119
Figure 10-16: Connection Summary ....................................................................................................120
Figure 11-1: Connection Wizard Screen ..............................................................................................123
Figure 11-2: VPN Client or Point-To-Point ...........................................................................................124
Figure 11-3: VLAN Interface .................................................................................................................124
Figure 11-4: Connection Summary ......................................................................................................125
Figure 11-5: IP Address Distribution - DHCP Server ...........................................................................127
Figure 11-6: IP Address Distribution - DHCP Relay .............................................................................127
Figure 11-7: DHCP Relay Server Address ...........................................................................................127
Figure 11-8: IP Address Distribution - Disable DHCP ..........................................................................128
Figure 11-9: Advanced Routing Properties ..........................................................................................128
Figure 11-10: Internet Connection Firewall ..........................................................................................129
Figure 11-11: Using VLAN - Setup .......................................................................................................130
Figure 11-12: Example of Using VLAN - VLAN Interface Screen ........................................................131
Figure 11-13: Verifying a New Interface on the WAN Side ..................................................................131
Figure 11-14: Configuring WAN Ethernet .............................................................................................132
Figure 11-15: Use the Following IP Address ........................................................................................132
Figure 11-16: Routing ...........................................................................................................................133
Figure 11-17: Route Settings ...............................................................................................................133
Figure 11-18: Input Rule Sets ..............................................................................................................134
Figure 11-19: Edit Advanced Filter .......................................................................................................134
Figure 11-20: Testing the Setup ...........................................................................................................135
Figure 11-21: Testing the Setup ...........................................................................................................135
Figure 11-22: Testing the Setup ...........................................................................................................135
Figure 11-23: Connection Wizard Screen ............................................................................................136
Figure 11-24: Advanced Connection Wizard Screen ...........................................................................137
Figure 11-25: Bridge Options ...............................................................................................................137
Figure 11-26: Network Bridging ............................................................................................................138
Figure 11-27: WLAN-LAN - Network Bridging ......................................................................................138
Figure 11-28: Connection Summary - Configure Existing Bridge ........................................................139
Figure 11-29: Bridge Settings ...............................................................................................................140
Figure 11-30: Example of Using Bridge Mode and Configuring VLANs ..............................................141
Figure 11-31: Configuring WAN Ethernet .............................................................................................142
Figure 11-32: Network Bridging ............................................................................................................143
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Figure 11-33: No IP Address ................................................................................................................143
Figure 11-34: Example of Tagging Voice and Untagging Data ............................................................144
Figure 11-35: WAN/LAN Bridge ...........................................................................................................145
Figure 11-36: VLAN Interface Screen ..................................................................................................145
Figure 11-37: Bridge Section of the Screen .........................................................................................145
Figure 11-38: VLAN Settings ................................................................................................................146
Figure 11-39: No IP Address ................................................................................................................146
Figure 11-40: Configuring WAN Ethernet .............................................................................................146
Figure 11-41: Testing the Setup ...........................................................................................................147
Figure 11-42: Testing the Setup ...........................................................................................................147
Figure 11-43: Configuring WAN Ethernet .............................................................................................148
Figure 11-44: VoIP and Data on same VLAN ......................................................................................148
Figure 11-45: No IP Address ................................................................................................................149
Figure 12-1: Remote Management Interfaces......................................................................................152
Figure 12-2: Firmware Upgrade Mechanism ........................................................................................153
Figure 12-3: TR-069 CPE WAN Management Protocol .......................................................................157
Figure 12-4: SNMP Network Architecture ............................................................................................171
Figure 13-1: Firewall in Action ..............................................................................................................177
Figure 13-2: General Security Level Settings.......................................................................................178
Figure 13-3: Access Control .................................................................................................................180
Figure 13-4: Add Access Control Rule .................................................................................................181
Figure 13-5: Port Forwarding Screen ...................................................................................................183
Figure 13-6: Add Port Forwarding Rule ................................................................................................183
Figure 13-7: Add a Specific Protocol ....................................................................................................183
Figure 13-8: Add a Specific Protocol ....................................................................................................184
Figure 13-9: Add Specific Ports ............................................................................................................184
Figure 13-10: Port Forwarding Rule .....................................................................................................184
Figure 13-11: DMZ Host .......................................................................................................................186
Figure 13-12: Port Triggering ...............................................................................................................187
Figure 13-13: Adding Port Triggering Rules .........................................................................................187
Figure 13-14: Edit Service Server Ports ...............................................................................................188
Figure 13-15: Edit Service Server Ports ...............................................................................................188
Figure 13-16: Edit Service Opened Ports .............................................................................................188
Figure 13-17: New Port Triggering Rule ...............................................................................................189
Figure 13-18: Website Restrictions ......................................................................................................190
Figure 13-19: Restricted Website .........................................................................................................190
Figure 13-20: Add a Specific Host ........................................................................................................191
Figure 13-21: Add a Specific Schedule ................................................................................................191
Figure 13-22: NAT Screen ....................................................................................................................193
Figure 13-23: Adding a NAT IP Address ..............................................................................................193
Figure 13-24: Adding NAT/NAPT Rule .................................................................................................194
Figure 13-25: Connections Screen .......................................................................................................196
Figure 13-26: Advanced Filtering .........................................................................................................197
Figure 13-27: Add Advanced Filter .......................................................................................................198
Figure 13-28: Add a Specific Host ........................................................................................................199
Figure 13-29: Set Priority Rule .............................................................................................................199
Figure 13-30: Security Log ...................................................................................................................200
Figure 13-31: Security Log Settings .....................................................................................................201
Figure 14-1: Advanced Screen .............................................................................................................207
Figure 14-2: Advanced - About the Gateway .......................................................................................210
Figure 14-3: New Certificates Screen ..................................................................................................211
Figure 14-4: Create Self Signed X509 Certificate Screen ....................................................................211
Figure 14-5: New Self Signed X509 Certificate Screen .......................................................................212
Figure 14-6: File Download Window ....................................................................................................212
Figure 14-7: Load Gateway's Local Certificate ....................................................................................213
Figure 14-8: CA's Certificates Page .....................................................................................................213
Figure 14-9: Load CA's Certificate Page ..............................................................................................214
Figure 14-10: Contents of the Configuration File .................................................................................215
Figure 14-11: Upload Configuration File ..............................................................................................216
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Figure 14-12: Advanced - Loading Configuration File from a PC on the Network ...............................217
Figure 14-13: Successful Configuration File Loading ..........................................................................217
Figure 14-14: Reboot After Configuration File Load ............................................................................217
Figure 14-15: Upload Configuration File ..............................................................................................218
Figure 14-16: Upload from Remote Server ..........................................................................................218
Figure 14-17: DNS Server ....................................................................................................................222
Figure 14-18: DNS Entry ......................................................................................................................223
Figure 14-19: Advanced - Diagnostics .................................................................................................224
Figure 14-20: Advanced - Diagnostics - Statistics ...............................................................................225
Figure 14-21: Traceroute Results .........................................................................................................226
Figure 14-22: MP-20x Firmware Upgrade Screen ...............................................................................227
Figure 14-23: Upgrade From a Computer in the Network Screen .......................................................228
Figure 14-24: Confirming Firmware Upgrade Screen ..........................................................................228
Figure 14-25: Advanced - Firmware and Configuration Upgrade ........................................................229
Figure 14-26: DHCP Server Summary .................................................................................................231
Figure 14-27: DHCP Settings Screen ..................................................................................................232
Figure 14-28: DHCP Settings ...............................................................................................................233
Figure 14-29: DHCP Relay Server Address Screen ............................................................................233
Figure 14-30: Advanced - IP Address Distribution - Connection List ...................................................234
Figure 14-31: Advanced - IP Address Distribution - Connection List - New Static Connection ...........234
Figure 14-32: Advanced - MAC Cloning Settings ................................................................................235
Figure 14-33: Network Objects Screen ................................................................................................236
Figure 14-34: Edit Network Objects Screen .........................................................................................236
Figure 14-35: Edit Item Screen ............................................................................................................237
Figure 14-36: PPPoE Relay Screen .....................................................................................................237
Figure 14-37: Personal Domain Name (Dynamic DNS) Screen ..........................................................238
Figure 14-38: Personal Domain Name (Dynamic DNS) - Adding ........................................................239
Figure 14-39: Advanced - Protocols .....................................................................................................241
Figure 14-40: Advanced - Protocols - Edit Service ..............................................................................242
Figure 14-41: Advanced - Protocols - Edit Service - Server Ports .......................................................242
Figure 14-42: Reboot Screen ...............................................................................................................242
Figure 14-43: Regional Settings ...........................................................................................................243
Figure 14-44: Remote Administration Screen ......................................................................................244
Figure 14-45: Restore Factory Settings Screen ...................................................................................245
Figure 14-46: Routing Rules.................................................................................................................246
Figure 14-47: Routing Rule Settings ....................................................................................................247
Figure 14-48: Advanced - Scheduler Rules .........................................................................................248
Figure 14-49: Edit Scheduler Rule Screen ...........................................................................................249
Figure 14-50: Edit Time Segment Screen ............................................................................................249
Figure 14-51: Advanced - SNMP .........................................................................................................250
Figure 14-52: System Settings Screen .................................................................................................252
Figure 14-53: Date and Time Screen ...................................................................................................254
Figure 14-54: Users Screen .................................................................................................................255
Figure 14-55: Users Settings Screen ...................................................................................................256
Figure 14-56: Group Settings Screen ...................................................................................................257
Figure 14-57: Advanced - Universal Plug n Play .................................................................................258
Figure 15-1: System Monitoring - Connections ....................................................................................260
Figure 15-2: System Monitoring - System Log .....................................................................................261
Figure 15-3: CPU Screen .....................................................................................................................262
Figure 15-4: Advanced - System Monitoring - VoIP .............................................................................263
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List of Tables
Table 1-1: MP-20x Models ..................................................................................................................... 17
Table 2-1: MP-20x LEDs Description ..................................................................................................... 20
Table 4-1: Network Map Icons ............................................................................................................... 34
Table 4-2: Sidebar Menu Description ..................................................................................................... 35
Table 4-3: Table Action Icons Description .............................................................................................. 36
Table 5-1: Signaling Protocol Tab Parameters Description ................................................................... 39
Table 5-2: Dialing Tab Parameters Description ..................................................................................... 45
Table 5-3: Media Streaming Tab Parameters Description ..................................................................... 49
Table 5-4: Voice and Fax Tab Parameters Description ......................................................................... 51
Table 5-5: Services Tab Parameters Description .................................................................................. 55
Table 5-6: Line Settings Tab Parameters Description ........................................................................... 58
Table 5-7: Speed Dial Settings - via Proxy ............................................................................................. 61
Table 5-8: 'Speed Dial Settings' - Direct Call ......................................................................................... 62
Table 8-1: Edit Traffic Shaping - Parameter Descriptions ...................................................................... 74
Table 8-2: Edit Shaping Class - Parameter Descriptions ....................................................................... 75
Table 8-3: Add Traffic Priority Rule - Parameter Descriptions ............................................................... 79
Table 8-4: Edit DSCP Settings- Parameter Descriptions ....................................................................... 82
Table 9-1: LAN Wireless Settings Tab Parameter Descriptions ............................................................ 89
Table 9-2: Wireless Tab Parameter Descriptions .................................................................................. 91
Table 9-3: Wireless Tab - Transmission Parameter Descriptions .......................................................... 98
Table 10-1: Settings Tab - Parameter Descriptions .............................................................................106
Table 10-2: Routing Parameters ..........................................................................................................108
Table 10-3: PPPoE Parameter Descriptions ........................................................................................110
Table 10-4: PPP Configuration Parameter Descriptions ......................................................................111
Table 10-5: PPP Authentication Parameter Descriptions ....................................................................112
Table 10-6: PPP Encryption Parameter Descriptions ..........................................................................113
Table 10-7: PPP Compression Parameter Descriptions ......................................................................113
Table 10-8: General PPTP Settings .....................................................................................................117
Table 10-9: General Settings ...............................................................................................................120
Table 11-1: VLAN Interface - General Communication Parameters ....................................................125
Table 11-2: IP Address Distribution Parameters ..................................................................................126
Table 11-3: DHCP Relay ......................................................................................................................127
Table 11-4: Assigning Static IP Addresses to Network Computers .....................................................128
Table 11-5: Routing Parameters ..........................................................................................................128
Table 12-1: Main Configuration Parameter Groups .............................................................................152
Table 12-2: Status and Performance Monitoring Parameters ..............................................................154
Table 12-3: Notifications and Logged Events.......................................................................................154
Table 12-4: Severity of Logged Events ................................................................................................155
Table 12-5: Operations per Configuration/Management Interface .......................................................155
Table 12-6: InternetGatewayDevice.WANDevice.i.WANConnectionDevice.i.WANIPConnection.i .....158
Table 12-7: InternetGatewayDevice.LANDevice.i.LANEthernetInterfaceConfig ..................................160
Table 12-8: InternetGatewayDevice.LANDevice.i.LANHostConfigManagement .................................160
Table 12-9: InternetGatewayDevice.Services.VoiceService.i.Capabilities ..........................................161
Table 12-10: InternetGatewayDevice.Services.VoiceService.i.Capabilities.Codecs ...........................164
Table 12-11: InternetGatewayDevice.Services.VoiceService.i.VoiceProfile ........................................164
Table 12-12: InternetGatewayDevice.Services.VoiceService.i.VoiceProfile.i.SIP ...............................165
Table 12-13: InternetGatewayDevice.DeviceInfo .................................................................................166
Table 12-14: InternetGatewayDevice.WANDevice.i.WANConnectionDevice.i.
WANIPConnection.i.Stats .....................................................................................................................168
Table 12-15: InternetGatewayDevice.LANDevice.i.LANEthernetInterfaceConfig.i.Stats ....................168
Table 12-16: InternetGatewayDevice.Services.VoiceService.i.VoiceProfile.i.Line.i.Stats ...................169
Table 12-17: Table 3-13: Information Elements Available via MIB-II ...................................................173
Table 13-1: Behavior for the Three Security Levels .............................................................................179
Table 14-1: Icon Description in the Advanced Screen .........................................................................207
Table 14-2: Dynamic DNS Parameter Descriptions .............................................................................239
Table 14-3: Adding a Routing Rule - Parameter Descriptions .............................................................247
Table 14-4: SNMP Parameters Description .........................................................................................251
Page 13
Version 3.0.1 13 July 2010
MP-20x Telephone Adapter Contents
Table 16-1: Dial Plan (for Left of '=' Sign) and Digit Map Syntax
.........................................................265
Table 17-1: MP-20x Telephone Adapter Software Specifications........................................................267
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MP-20x Telephone Adapter 14 Document #: LTRT-50609
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Reader’s Notes
Page 15
Version 3.0.1 15 July 2010
MP-20x Telephone Adapter Notices
Notice
This document describes AudioCodes MP-20x Telephone Adapter Version 3.0.1.
Information contained in this document is believed to be accurate and reliable at the time of
printing. However, due to ongoing product improvements and revisions, AudioCodes cannot
guarantee accuracy of printed material after the Date Published nor can it accept responsibility
for errors or omissions. Updates to this document and other documents can be viewed by
registered customers at http://www.audiocodes.com/downloads.
© 2010 AudioCodes Inc. All rights reserved
This document is subject to change without notice.
Date Published: July-25-2010
Trademarks
AudioCodes, AC, AudioCoded, Ardito, CTI2, CTI², CTI Squared, HD VoIP, HD VoIP
Sounds Better, InTouch, IPmedia, Mediant, MediaPack, NetCoder, Netrake, Nuera, Open
Solutions Network, OSN, Stretto, TrunkPack, VMAS, VoicePacketizer, VoIPerfect,
VoIPerfectHD, What’s Inside Matters, Your Gateway To VoIP and 3GX are trademarks or
registered trademarks of AudioCodes Limited. All other products or trademarks are
property of their respective owners.
WEEE EU Directive
Pursuant to the WEEE EU Directive, electronic and electrical waste must not be disposed
of with unsorted waste. Please contact your local recycling authority for disposal of this
product.
Customer Support
Customer technical support and service are provided by AudioCodes' Distributors,
Partners, and Resellers from whom the product was purchased. For Customer support for
products purchased directly from AudioCodes, contact support@audiocodes.com
.
Abbreviations and Terminology
Each abbreviation, unless widely used, is spelled out in full when first used. Only industrystandard terms are used throughout this manual. Hexadecimal notation is indicated by 0x
preceding the number. When the term 'device' is used, it refers to the MP-20x Telephone
Adapter.
Regulatory Information
The Regulatory Information can be viewed at http://www.audiocodes.com/downloads.
Page 16
MP-20x Telephone Adapter 16 Document #: LTRT-50609
User's Manual
Related Documentation
Document Name
MP-20x Telephone Adapter Release Notes
MP-202C Broadband VoIP Gateway & Wireless Router Quick Guide
MP-20x FXS-FXO Telephone Adapter Quick Installation Guide
MP-20x FXS Telephone Adapter Quick Installation Guide
MP-202 Advanced Configuration and Management Features Application Note
MP-20x Debugging and Diagnostic Tools Application Note
MP-20x FXO Interface Application Note
MP-20x Redundant Proxy Application Note
MP-20x Recommended Network Topologies Application Note
MP-20x Web Access Protection Application Note
MP-20x Remote Management Application Note
Note: Open source software may have been added and/or amended for this
product. For further information please visit our website at:
http://audiocodes.com/support or contact your AudioCodes sales
representative.
For Customers in Canada
This Class [B] digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe [B] est conforme à la norme NMB-003 du Canada.
Operation is subject to the following two conditions: (1) this device may not cause interference,
and (2) this device must accept any interference, including interference that may cause
undesired operation of the device.
This device and its antenna(s) must not be co-located or operating in conjunction with any
other antenna or transmitter.
The County Code Selection feature is disabled for products marketed in the US/Canada.
IC Radiation Exposure Statement
This equipment complies with IC RSS-102 radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with minimum
distance of 20 cm between the radiator and your body.
Page 17
Version 3.0.1 17 July 2010
MP-20x Telephone Adapter 1. Introducing AudioCodes' MP-20x Telephone Adapter
1 Introducing AudioCodes' MP-20x
Telephone Adapter
AudioCodes MP-20x series of analog Telephone Adapters are cost-effective, feature-rich
gateways, allowing the connection of ordinary POTS analog telephones or fax machines to
a Voice-over-Broadband (VoBB) service provider.
The MP-20x series is designed for the rapidly growing residential and Small Office/Home
Office (SOHO) voice-over-IP (VoIP) market. The MP-20x series typically connects to an
existing Broadband Internet device (Cable, ADSL modem, or WiMAX wireless - depending
on model), and establishes a communications path with the service provider network
through its IP uplink connection. Supporting a rich set of subscriber calling features such as
caller ID, call forwarding, and call waiting, the MP-20x series maintains a uniform user
experience when migrating to VoIP services. In addition, the MP-20x series serves as a
router with capabilities such as DHCP, NAT, Firewall, PPPoE, PPTP and L2TP, supporting
connectivity of home PC networks.
The MP-20x VoIP Gateway is an all-in-one unit featuring (depending on model) a VoIP
adapter, FXS lines, FXO interfaces, Ethernet LAN interfaces (with an internal Layer-2
switch), Ethernet WAN interface, and/or 802.11b/g Wireless LAN.
Utilizing AudioCodes' VoIPerfect™ core architecture, and gaining from its accumulated
experience in providing IP telephony solutions, the MP-20x series combines superior voice
quality and cutting-edge features for end users, such as T.38 Fax Relay and G.168-2004
compliant Echo Cancellation. Low bit rate vocoders (voice coders) can be used
simultaneously on all the telephony ports to save valuable bandwidth.
The MP-20x is available in the following models:
Table 1-1: MP-20x Models
Model FXS FXO WAN LAN WiFi
MP-201B/1FXS/SIP
1 - 1 1 -
MP-202B/2FXS/SIP
2 - 1 1 -
MP-
203B/2FXS/1FXO/SIP1
2 1 1 1
-
MP-204B/4FXS/SIP
4 - 1 1 -
MP-202C-A
2 - 1 1 -
MP-202C-R
2 - 1 4 -
MP-202C-W
2 - 1 4 802.11b/g
1
This model is currently not supported in this release.
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Figure 1-1: Rear Panel of MP-20xB Models
Figure 1-2: Rear Panel of MP-202C Models
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Version 3.0.1 19 July 2010
MP-20x Telephone Adapter 2. Cabling the MP-20x Telephone Adapter
2 Cabling the MP-20x Telephone Adapter
¾ To cable the MP-20x:
1. Connect the MP-20x's Ethernet 10/100 Base-T RJ-45 connector labeled WAN to your
cable or DSL modem (or other network connection).
2. Connect the MP-20x's Ethernet 10/100 Base-T RJ-45 connector labeled LAN/PC to a
computer.
3. Optionally, you can connect the MP-20x's connector labeled LAN/PC to a switch / hub
and connect multiple PCs to the latter.
4. Connect the MP-20x's RJ-11 ports labeled PHONE 1, PHONE 2 and so on (number of
ports depends on model) to analog telephones.
5. Connect the power cable to the electrical outlet using the AC/DC power adapter; the
POWER LED is lit (green) and when initialization completes (~ 1 minute), the STATUS
LED changes from red to green.
Figure 2-1: Cabling the Device (Example using MP-202C-W)
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MP-20x provides LEDs on the front panel for indicating various operating status, as
described in the table below:
Table 2-1: MP-20x LEDs Description
LED Color State Description
POWER Green
On Power received by MP-20x
- Off MP-20x has been powered off
STATUS Green
On System start-up successful
Red
On Reboot (automatic, by default)
WAN Green
On WAN port is successfully connected
Blinking Data is being sent and received
- Off Ethernet cable is not connected
LAN Green
On LAN port is in use
Blinking LAN port is sending or receiving data
- Off Ethernet cable is not connected
WiFi Green
On WiFi is enabled and active
- Off No WiFi activity
Note: This LED is applicable only to MP-202C-W.
PHONE Green
Type 1 Blinking Idle Proxy register ok
On Off-hook
Type 2 Blinking Phone ringing
Type 3 Blinking Upgrade in process (all LEDs including STATUS LED)
Red
On Idle Proxy register failed
- Off On-hook and not ringing, not using Proxy
LINE Green
On FXO line is in off-hook state
Type 2 Blinking FXO Line is ringing
- Off FXO line in idle state
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Version 3.0.1 21 July 2010
MP-20x Telephone Adapter 3. Setting up a Network Connection
3 Setting up a Network Connection
¾ To set up a network connection:
1. Define your PC's network connection (refer to 'Defining Your PC's Network
Connection' on page 21)
2. Config
ure MP-20x's network connection (refer to 'Configuring the MP-20x's Network
Connection' on page 24)
3.1 Defining Your PC's Network Connection
Refer to MP-20x Telephone Adapter Quick Installation Guide for instructions relating to
installation on a Windows™ operating system.
Each network interface on the PC should either be configured with a statically defined IP
address and DNS address, or should be instructed to automatically obtain an IP address
using the Network DHCP server. MP-20x provides a DHCP server on its LAN and it is
recommended to configure your PC to obtain its IP and DNS server IPs automatically. This
configuration principle is identical but performed differently on each operating system.
Refer to 'Windows XP' on page 22
Refer to 'Li
nux' on page 22
For
connecting your PC to the MP-20x's wireless network, refer to 'Wireless LAN
Connection' on page 22.
Note: The setup procedure is in most cases unnecessary due to Windows' default
network settings. For example, the default DHCP setting in Windows XP is
'client', requiring no further modification. It is advisable however to follow the
setup procedure in order to verify that all communication parameters are valid
and that the physical cable connections are correct.
Figure 3-1: IP and DNS Configuration
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MP-20x Telephone Adapter 22 Document #: LTRT-50609
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3.1.1 Windows XP
¾ To configure your PC running Windows XP for dynamic IP addressing:
1. Access 'Network Connections' from the Control Panel.
2. Right-click the Ethernet connection icon, and select 'Properties'.
3. Under the General tab, select the 'Internet Protocol (TCP/IP)' component, and click
the Properties button.
4. The 'Internet Protocol (TCP/IP)' properties window is displayed.
5. Select the 'Obtain an IP address automatically' radio button.
6. Select the 'Obtain DNS server address automatically' radio button.
7. Click OK to save the settings.
3.1.2 Linux
¾ To configure your PC running Linux for dynamic IP addressing:
1. Login into the system as a super-user, by entering `su' at the prompt.
2. Type 'ifconfig' to display the network devices and allocated IP's.
3. Type 'pump -i <dev>', where <dev> is the network device name.
4. Type 'ifconfig' again to view the new allocated IP address.
5. Make sure no firewall is active on device <dev>.
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Version 3.0.1 23 July 2010
MP-20x Telephone Adapter 3. Setting up a Network Connection
3.1.3 Wireless LAN Connection
If your PC has wireless capabilities, Windows automatically recognizes this and creates a
wireless connection for you. You can view this connection in the 'Network Connections'
window.
Note: This section is based on PC's running Microsoft Windows XP Professional.
¾ To configure your PC for connecting to MP-20x's wireless connection:
1. From your Windows Start menu, point to Settings, Control Panel, Network
Connections, and then choose Wireless Connection; Windows starts enabling the
wireless connection.
2. On the Windows Taskbar, right-click the Wireless Network Connection icon, and
then choose View Available Wireless Connections;
Figure 3-2: Available Wireless Networks
3. Double-click MP-20x's wireless network name ("Gateway"); your computer establishes
a connection with MP-20x, indicated by the display of "Connected". The Windows
Taskbar displays the wireless connection.
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3.2 Configuring the MP-20x's Network Connection
The Web-based management interface of MP-20x allows you to control the device's
system parameters. The interface is accessed through a Web browser. For detailed
information on MP-20x's Web-management interface, refer to 'Using the MP-20x's Web
Interface' on page 33.
3.2.1 Logging in to MP-20x Web Interface
The procedure below describes how to login to MP-20x’s embedded Web interface.
¾ To log in:
1. Launch a Web browser on your PC.
2. With your PC connected directly to MP-20x, use URL http://mp20x.home to access the
Web-based management interface; the ‘Login’ screen appears.
Figure 3-3: Logging In
3. In the 'User Name' field, enter your user name.
4. In the 'Password' field, enter your case-sensitive password.
5. Click OK; the 'Quick Setup' screen opens.
Notes:
• The default user name and password is "admin" (case-sensitive).
However, it is recommended to define a new password after your first
login session (refer to 'Configuring Users' on page 255).
• If there’s inactivity after logging in, a new login becomes necessary after
a lapse of 15 minutes.
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Version 3.0.1 25 July 2010
MP-20x Telephone Adapter 3. Setting up a Network Connection
3.2.2 Configuring 'Quick Setup' Screen Parameters
The 'Quick Setup' screen enables the speedy, precise, and accurate configuration of your
Internet connection and other important parameters.
¾ To access the 'Quick Setup' screen:
1. From the sidebar menu, click the Quick Setup menu; the 'Quick Setup' screen
appear.
Figure 3-4: Quick Setup Screen
Note: End users are advised not to modify the section 'Administrator'. The screen
section applies to telephony carrier technicians.
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MP-20x Telephone Adapter 26 Document #: LTRT-50609
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In the 'Administrator' section of the 'Quick Setup' screen, specify the administrator's e-mail
in the 'E-mail Address' field. System alerts and notifications are sent to this address.
3.2.2.1 Configuring Your Internet Connection
When subscribing to a broadband service, you should be aware of the method by which
you are connected to the Internet. Technical information regarding the properties of your
Internet connection should be provided by your Internet Service Provider (ISP). For
example, your ISP should inform you whether you are connected to the Internet using a
static or dynamic IP address, or what protocols, such as PPTP or PPPoE, you will be using
to communicate over the Internet.
Note: MP-20x supports automatic detection of the user's Internet dialer type and
allows you to ignore the settings in this subsection. For a detailed description
of this feature, refer to “Configuring Automatic Internet Dialer Detection” on
page 31.
3.2.2.1.1 Automatic IP Address Ethernet Connection
'Automatic IP Address Ethernet Connection' is the default connection type in the
'Connection Type' drop-down list.
Figure 3-5: Internet Connection - Automatic IP Address Ethernet Connection
If left at the default, MP-20x obtains the WAN IP and DNS IP addresses from a DHCP
server on the WAN.
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Version 3.0.1 27 July 2010
MP-20x Telephone Adapter 3. Setting up a Network Connection
3.2.2.1.2 Manual IP Address Ethernet Connection
¾ To configure manual IP address connection:
1. From the 'Connection Type' drop-down list, select 'Manual IP Address Ethernet
Connection'.
Figure 3-6: Internet Connection - Manual IP Address Ethernet Connection
2. According to your ISP's instructions, specify the following parameters:
• IP address
• Subnet mask
• Default device
• Primary DNS server
• Secondary DNS server
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MP-20x Telephone Adapter 28 Document #: LTRT-50609
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3.2.2.1.3 Point-to-Point Protocol over Ethernet (PPPoE)
¾ To configure PPPoE connection:
1. From the 'Connection Type' drop-down list, select 'Point-to-point protocol over
Ethernet (PPPoE)'.
Figure 3-7: Internet Connection - PPPoE
2. Your ISP should provide you with the following information:
• Login user name
• Login password
3.2.2.1.4 Point-to-Point Tunneling Protocol (PPTP)
¾ To configure PPTP connection:
1. From the 'Connection Type' drop-down list, select 'Point-to-Point Tunneling Protocol
(PPTP)'.
Figure 3-8: Internet Connection - Point-to-Point Tunneling Protocol
2. Your ISP should provide you with the following information:
• PPTP Server Host Name or IP Address
• Login user name
• Login password
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Version 3.0.1 29 July 2010
MP-20x Telephone Adapter 3. Setting up a Network Connection
3.2.2.1.5 Layer 2 Tunneling Protocol (L2TP)
¾ To configure L2TP connection:
1. From the 'Connection Type' drop-down list, select 'Layer 2 Tunneling Protocol (L2TP)'.
Figure 3-9: Layer 2 Tunneling Protocol
2. Your ISP should provide you with the following information:
• L2TP Server Host Name or IP Address
• Login user name
• Login password
3.2.2.1.6 No Internet Connection
This option is if you do not have an Internet connection, or if you want to disable all existing
connections.
¾ To configure no Internet connection:
From the 'Connection Type' drop-down list, select 'No Internet Connection'.
Figure 3-10: Internet Connection - No Internet Connection
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3.2.2.2 Enabling Wireless LAN Connection
The 'Quick Setup' screen allows you to quickly setup a LAN wireless connection.
¾ To setup your wireless connection:
1. From the sidebar menu, click the Quick Setup menu; the 'Quick Setup' screen
appears.
2. Under the 'Wireless' section, perform the following:
a. Select the 'Enable Wireless' check box to enable the LAN wireless connection.
b. In the 'Wireless Network (SSID)' field, specify the wireless network's ID. The
default SSID is 'Gateway'.
For a full description on configuring MP-20x's LAN wireless interface, refer to 'LAN
Wireless Connection' on page 87.
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Version 3.0.1 31 July 2010
MP-20x Telephone Adapter 3. Setting up a Network Connection
3.2.3 Configuring Automatic Internet Dialer Detection
MP-20x supports the automatic detection of the user's Internet dialer type. This allows you
to ignore the Internet connection settings required in Configuring Your Internet Connection.
This support is customer ordered and pre-defined in the MP-20x factory settings. These
factory settings are according to the ISP's Internet connection requirements (e.g., PPPoE
user name and password), provided by the ISP for the parameters listed below.
Notes:
• Detection of the dialer type occurs only at initial power up (or after
restoring to defaults).
• If the Automatic Dialer Detection feature is enabled, the remote
configuration file mechanism only starts (immediately) once the automatic
detection process is performed successfully.
The parameters and their values required (from the ISP) for the Automatic Internet Dialer
Detection feature are shown below:
auto_dialer_detect/enabled=0
; where 0 = disabled and 1=enabled
auto_dialer_detect/done=1
; process completed successfully (1 = success and -1 = failed)
auto_dialer_detect/connection_type/0 /Type= PPPOE
auto_dialer_detect/connection_type/0/enabled=1
auto_dialer_detect/connection_type/0/user_name=xxx
; where xxx is the PPPoE username
auto_dialer_detect/connection_type/0/password=xxx
; where xxx is the PPPoE password
auto_dialer_detect/connection_type/1/type=L2TP
auto_dialer_detect/connection_type/1/enabled=1
auto_dialer_detect/connection_type/1/server_ip=xxx.xxx.xxx.xxx
; where xxx.xxx.xxx.xxx is the L2TP IP address
auto_dialer_detect/connection_type/1/username=xxx
; where xxx is the L2TP username
auto_dialer_detect/connection_type/1/password=xxx
; where xxx is the L2TP password
auto_dialer_detect/connection_type/2/type=DHCP
auto_dialer_detect/connection_type/2/enabled=1
auto_dialer_detect/auto_detect_retries=x
; number of retires for the detection feature
auto_dialer_detect/ping_retries=x
; number of pings to send for Internet connectivity check
auto_dialer_detect/ping_retries_timeout=x
; seconds to wait for ping response
auto_dialer_detect/max_dialer_conn_time=x
; seconds to wait for a dialer to connect
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Reader’s Notes
Page 33
Version 3.0.1 33 July 2010
MP-20x Telephone Adapter 4. Using the MP-20x's Web Interface
4 Using the MP-20x's Web Interface
4.1 Your Home Network Map
After you log in to the Web-based management, the Network Map is displayed, as shown
below.
Figure 4-1: Network Map
Note: The maximum number of displayed telephone lines depends on the MP-20x
model (refer to 'Introducing AudioCodes' MP-20x Telephone Adapter' on page
17).
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MP-20x Telephone Adapter 34 Document #: LTRT-50609
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The network map depicts various network elements, from top to bottom:
1. External network interface (WAN Internet connection)
2. Firewall
3. MP-20x
4. Telephones, LAN network computers, and peripherals connected to MP-20x
The table below describes the different network map icons:
Table 4-1: Network Map Icons
Icon Description
Represents the Internet. Clicking this icon redirects you to the 'Quick Setup' screen.
Represents your Ethernet Wide Area Network (WAN) connection. Click this icon to
configure the WAN interface.
Represents the Telephone Adapter's firewall. The height of the wall (yellow "bricks")
corresponds to the security level currently selected: Minimum, Typical or Maximum.
Click this icon to configure security settings.
Represents the Telephone Adapter's model and displays the software version
currently running on the device. Click this icon to access the 'Quick Setup' screen for
performing basic device configuration.
Represents an analog telephone connected to the device. Click this icon to configure
the line settings.
Represents a computer (host) connected in the home network. Each computer
connected to the network appears below the network symbol of the network through
which it is connected. Click an icon to view network information for the corresponding
computer.
Represents a Wi-Fi connection to connect to a LAN device (PC). Click this icon to
configure the LAN wireless access properties for the device.
Represents an Ethernet Local Area Network (LAN) connection to a LAN device. Click
this icon to configure network parameters for the Ethernet LAN device. If there is no
connection to a connected PC, an "X" appears on the connecting line.
Represents a bridge connected in the home network. Click this icon to view the
bridge's underlying devices.
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Version 3.0.1 35 July 2010
MP-20x Telephone Adapter 4. Using the MP-20x's Web Interface
4.2 Web Interface Menus
The Web-based management screens have been grouped into several subject areas and
can be accessed by clicking the appropriate menu listed in the left sidebar.
Table 4-2: Sidebar Menu Description
Menu Description
Home
Displays the Network Map.
Quick Setup
Displays the 'Quick Setup' screen for quickly configuring your MP-20x.
Network
Connections
Displays the 'Network Connections' screen for adding and configuring network
connections.
Security
Displays the 'Security' screen for configuring MP-20x's Firewall and regulates
communication between the Internet and the home network.
Voice over IP
Displays the 'Voice Over IP' screen for configuring the VoIP parameters to use
MP-20x's VoIP to place and receive calls over the Internet using a standard
telephone set.
QoS
Displays the 'Quality Of Service' screen for configuring Quality of Service
(QoS) parameters for MP-20x.
Advanced
Displays the 'Advanced' screen for configuring system parameters (e.g.,
DHCP server and DNS) and performs administrative functions, including
changing password, setting date and time and upgrading the system.
System Monitoring
Displays the 'System Monitoring' screen for viewing various status such as
network status, traffic statistics, the system log and the VoIP status.
Logout
Logs off from MP-20x.
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4.3 Managing Tables
Tables are structures used throughout the Web-based management. They handle userdefined entries relating to elements such as network connections, local servers, restrictions
and configurable parameters. The principles outlined in this section apply to all tables in the
Web-based management.
Figure 4-2: Typical Table Structure
The figure illustrates a typical table. Each row denotes an entry in the table. The table also
provides 'Action' icons for performing various tasks, as described in the table below.
Table 4-3: Table Action Icons Description
Action Icon Name Description
Add
Adds a row to the table.
Edit
Edits a row in the table.
Delete
Removes a row from the table.
Download
Downloads a file to a folder on your computer.
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Version 3.0.1 37 July 2010
MP-20x Telephone Adapter 5. Configuring VoIP Parameters
5 Configuring VoIP Parameters
The VoIP parameters are configured in the 'Voice over IP' screen. This screen is opened
by clicking the 'Voice over IP' link on the menu bar to the left; the Voice over IP' screen
opens showing the tabs that allow:
'Configuring Signaling Protocol Parameters' on page 37
'Config
uring Dialing Parameters' on page 43
'Config
uring Media Streaming Parameters' on page 47
'Config
uring Voice and Fax Parameters' on page 50
'Config
uring Services Parameters' on page 54
'Configu
ring Line Settings' on page 56
'Config
uring Speed Dial Settings' on page 59
'Config
uring Telephone Interfaces' on page 62
Note: Clicking the button Advanced in the 'Voice Over IP' screens displays
additional VoIP parameters for advanced configuration.
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5.1 Configuring Signaling Protocol Parameters
Note: In the current version release, only SIP (Session Initiation Protocol) is
supported.
¾ To configure signaling protocol parameters:
1. From the left sidebar, click the Voice Over IP menu; the 'Signaling Protocol' tab
screen appears (by default).
Figure 5-1: VoIP - Signaling Protocol
2. Configure the desired parameters according to the table below, and then click OK.
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Table 5-1: Signaling Protocol Tab Parameters Description
Parameter Description
Signaling Protocol
Signaling Protocol
Signaling protocol running on the device. In the current version
release, only SIP (Session Initiation Protocol) is supported.
SIP Transport Protocol
Choose either UDP (default) or TCP.
Note: This parameter appears only in 'Advanced' mode.
Local SIP Port
The UDP/TCP port (default = 5060) on which the Stack listens.
Note: This parameter appears only in 'Advanced' mode.
Gateway Name-User Domain
This domain name is sent in the From header of outgoing Invite
messages.
Note: This parameter appears only in 'Advanced' mode.
Enable PRACK
When enabled, MP-20x replies with a PRACK message upon receipt
of a reliable provisional response. MP-20x does not initiate reliable
provisional responses.
Note: This parameter appears only in 'Advanced' mode.
Include ptime in SDP
When enabled, MP-20x adds the ptime field to the SDP message
body.
Note: This parameter appears only in 'Advanced' mode.
Enable rport
When enabled, MP-20x adds the rport parameter to the relevant SIP
Message fields.
Note: This parameter appears only in 'Advanced' mode.
Connect media on 180
When enabled, media is connected upon receipt of SIP 180, 183, or
200 messages. When the parameter is disabled, media is connected
upon receipt of 183 and 200 messages only.
Note: This parameter appears only in 'Advanced' mode.
Enable Keep Alive
When enabled, a keep-alive notification is sent every user-defined
interval to the SIP registrar entity.
Note: This parameter appears only in 'Advanced' mode.
Keep Alive Type
The type of keep-alive mechanism sent to the SIP registrar entity:
• Using SIP OPTIONS: sends a SIP OPTIONS message
• Using an Empty UDP packet: sends an empty UDP packet
Note: This parameter appears only if “Enable Keep Alive" is selected.
Keep-Alive Period
Sets the periodic interval.
Note: This parameter appears only if “Enable Keep Alive" is selected.
SIP Proxy and Registrar
Use SIP Proxy
When checked, outgoing calls are routed to the configured SIP proxy.
If the parameter 'Use SIP Proxy IP and Port for Registration' is
checked as well, the configured SIP proxy is also used as the
registrar, allowing incoming calls.
Host Name or Address
The IP address or host name of the SIP proxy.
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Parameter Description
Proxy Port
The UDP or TCP port of the SIP proxy.
Maximum Number of
Authentication Retries
Defines how many times authenticated register messages are re-sent
if 401 or 407 responses with a different “nonce” are received.
Use SIP Proxy IP and Port
for Registration
Use the SIP proxy IP and port for registration. Default = checked.
When checked, there is no need to configure the address of the
registrar separately.
Register Expires
The registration timeout, in seconds.
Register Failed Expires
Periodic registration in case of a registration failure (e.g., due to a
network problem).
SIP Security
MP-20x's firewall can be configured to block incoming packets that
have the SIP signaling port as their destination. You can configure up
to two SIP entities (for example, the SIP Proxy or an SBC), which are
not to be blocked by the firewall.
The default value is “Allow all SIP traffic”.
Address Type
Defines the address type of the additional SIP entity. It can be set to
“IP Address” or “Host Name”.
Note: This parameter appears only if the parameter 'SIP Security' is
set to “Allow SIP traffic from Proxy and Additional SIP Entity”.
SIP Entity Address
The address of the additional SIP entity.
Note: This parameter appears only if the parameter 'SIP Security' is
set to “Allow SIP traffic from Proxy and Additional SIP Entity”.
Use Redundant Proxy
Check the box to use a redundant proxy.
Redundant Proxy Address
The IP address of the redundant proxy.
Redundant Proxy Port
The port of the redundant proxy.
Redundant Proxy Keep Alive
Period
The interval between keep-alive packets (SIP OPTIONS) which are
used by the proxy redundancy mechanism to check the connection
status.
Switch back to Primary SIP
proxy when available
When checked, the device switches back to the primary proxy server
when communication with it is returned.
Use SIP Registrar
Check the box to use a separate SIP registrar server.
Registrar Address
The IP address or host name of the registrar server.
Note: This parameter appears only if Use SIP Registrar is selected.
Registrar Port
The UDP or TCP port of the registrar server.
Note: This parameter appears only if Use SIP Registrar is selected.
Use SIP Outbound Proxy
Use an outbound SIP proxy (all SIP messages are sent to this server
as the first hop). Default = unchecked.
Note: This parameter appears only in 'Advanced' mode.
Outbound Proxy IP
The IP address of the outbound Proxy. If this parameter is set, all
outgoing messages (including Registration messages) are sent to this
Proxy according to the Stack behavior.
Note: This parameter appears only if 'Use SIP Outbound Proxy' is
selected.
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Parameter Description
Outbound Proxy Port
The Port on which the outbound Proxy listens.
Note: This parameter appears only if 'Use SIP Outbound Proxy' is
selected.
SIP Timers
Note: This group appears only in 'Advanced' mode.
Retransmission Timer T1
The SIP T1 retransmission timer according to RFC 3261
Retransmission Timer T2
The SIP T2 retransmission timer according to RFC 3261
Retransmission Timer T4
The SIP T4 retransmission timer according to RFC 3261
INVITE Timer
The SIP INVITE timer according to RFC 3261
NAT Traversal
Enable STUN
When checked, the SIP STUN Manager starts. SIP STUN Manager
resolves private addresses that need to be resolved to public
addresses.
Note: This parameter appears only in 'Advanced' mode.
STUN Server Address
The IP address of the STUN server used to resolve private
addresses.
Note: This parameter appears only if 'Enable STUN' is enabled.
STUN Server Port
The port of the STUN server.
Note: This parameter appears only if 'Enable STUN' is enabled.
Subnet Mask
The subnet mask address of the STUN server used to resolve private
addresses.
Note: This parameter appears only if 'Enable STUN' is enabled.
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5.1.1 Configuring Proxy Redundancy
The Redundant Proxy feature allows the configuration of a backup SIP proxy server to
increase Quality of Service (QoS). Once this feature is enabled, MP-20x identifies cases
where the primary proxy does not respond to SIP signaling messages. In these cases, MP20x registers to the redundant proxy and seamlessly continues normal functionality, without
any noticeable connectivity failure or malfunction with the primary proxy.
The Redundant Proxy feature includes two operational modes:
Asymmetric mode: this mode assigns the primary proxy a higher priority for
registration over the redundant proxy. Once MP-20x is registered to the primary proxy,
it sends keep-alive messages (using SIP OPTIONS messages) to the primary proxy. If
the primary proxy does not respond, MP-20x registers to the redundant proxy, but
continues sending keep-alive messages to the primary proxy. If the primary proxy
responds to these keep-alive messages, MP-20x re-registers to the primary proxy.
Symmetric mode: in this mode, both proxies are assigned the same priority for
registration. Once MP-20x is registered to a proxy (primary or redundant), it sends
keep-alive messages to this proxy. MP-20x switches proxies only once the proxy to
which it has registered does not respond.
In both modes, the following applies:
If MP-20x is not registered (i.e., if the proxy server - redundant or primary - to which
MP-20x currently tries to register does not respond), MP-20x attempts to register to an
alternative proxy. These attempts continue until MP-20x successfully registers.
If this feature is enabled and you reboot MP-20x, it registers to the last proxy to which
it was trying to register (not necessarily to the primary proxy).
¾ To configure proxy redundancy:
1. From the left sidebar, click the Voice Over IP menu; the 'Signaling Protocol' tab
screen appears.
2. Define a primary proxy server, by performing the following:
a. Under the group 'SIP Proxy and Registrar', select one of the following check
boxes: 'Use SIP Registrar' or 'Use SIP Proxy IP and Port for SIP Proxy IP and
Port for Registration'.
b. In the 'Host Name or Address' field, enter the primary proxy's IP address.
c. In the 'Proxy Port' field, enter the primary proxy's port number.
3. Define a redundancy proxy server, by performing the following:
a. Under the group 'SIP Proxy and Registrar', select the 'Use Redundant Proxy'
check box; additional fields relating to proxy redundancy appears.
b. In the 'Redundant Proxy Address' field, enter the redundant proxy's IP address or
DNS name.
c. In the 'Redundant Proxy Port' field, enter the redundant proxy's port number.
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d. In the 'Redundant Proxy Keep Alive Period' field, enter the rate (in seconds) of
the keep-alive messages for sending to the proxy. The valid range is 10 to 86,400
seconds (i.e., 24 hours). The default value is 60 sec.
e. To toggle between Symmetric and Asymmetric modes, use the check box 'Switch
back to Primary SIP proxy when available'.
♦ Asymmetric mode - select the check box (i.e., mark it)
♦ Symmetric mode - clear the check box
Figure 5-2: Configuring Proxy Redundancy
4. Click OK to save your settings.
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5.2 Configuring Dialing Parameters
¾ To configure Dialing parameters:
In the 'Voice Over IP' screen, click the Dialing tab; the basic 'Dialing' parameters
screen opens. To view advanced parameters, click the Advanced button.
Figure 5-3: Voice Over IP - Dialing Screen
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Table 5-2: Dialing Tab Parameters Description
Parameter Description
Dialing Parameters
Dialing Timeout
Dialing timeout specifies the duration (in seconds) of allowed inactivity
between dialed digits. When you work with a proxy or gatekeeper, the
number you have dialed before the dialing process has timed out is sent to
the proxy/gatekeeper as the user ID to be called. This is useful for calling a
remote party without creating a speed dial entry (assuming the remote party
is registered with the proxy/gatekeeper).
Phone Number Size
The maximum length of shortcut numbers that you can enter and the
maximum number of digits that you can dial.
Enabled dialing
complete key
When checked, a specific key can be defined for the Complete Dialing key.
Pressing the Dialing complete key forces MP-20x to make a call to the
dialed digits even if there is no match in the dial plan or digit map. The
default value is enabled.
Note: This parameter appears only in 'Advanced' mode.
Complete Dialing Key
Defines the Complete Dialing key. The default value is the pound (#) key.
Note: This parameter appears only in 'Advanced' mode.
Dial Tone Timeout
The duration of the dial tone, in seconds. If the limit is exceeded, the dial
tone stops and you hear a Reorder tone.
Reorder Tone Timeout
The duration (in seconds) of the Reorder tone. The Reorder tone is played
for example, when MP-20x receives a 486 Response. If the limit is
exceeded, the Reorder tone stops and a Howler tone is played to the user.
Note: This parameter appears only in 'Advanced' mode.
Unanswered Call
Timeout
Timeout before MP-20x automatically sends a Cancel message. When MP20x makes a call and the other side doesn’t answer, MP-20x sends a
Cancel after this timeout.
Note: This parameter appears only in 'Advanced' mode.
Howler Tone Timeout
The duration (in seconds) of the Howler tone. If the limit is exceeded, the
Howler tone stops. The Howler tone informs a user that the user's phone
has been left in an off-hook state.
Note: This parameter appears only in 'Advanced' mode.
Flash min
The duration (in ms) after which you can begin to perform a Flash Hook.
Flash max
The maximum duration (in ms) the Flash Hook button can be pressed, after
which the call is disconnected.
Enable Re-Answer
Timeout
When enabled, the ‘Re-Answer Timeout’ field appears. The timeout after
on-hooking an active call and then off-hooking it again. Once this time
expires and the phone has not been off-hooked again, the call is
disconnected.
Send DTMF Out-OfBand
DTMFs are the tones generated by your telephone's keypad. Choose either
Inband, RFC 2833, or Via SIP.
Note: This parameter appears only in 'Advanced' mode.
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Parameter Description
Digit Map
Enables the ISP to predefine possible formats (or patterns) for the dialed
number. A match to one of the defined patterns terminates the dialed
number. An ‘x’ in the pattern indicates any digit. ‘;’ separates between
patterns.
Example: '10x;05xxxxxxxx;4xxx'.
In this example, 3 patterns are defined. A number that starts with 10 is
terminated after the third digit and so on. If the user dials a number that
does not match any pattern, the number is terminated using the timeout or
when the user presses the pound (‘#’) key.
For an explanation on digit map syntax, refer to 'Syntax for Digit Maps and
Dial Plans' on page 265.
Note: This parameter appears only in 'Advanced' mode.
Dial Plan
Enables translation of specific patterns to specific SIP destination
addresses. Rules are separated by the character ';'. An ‘x’ represents any
dialed digit. Each backslash on the right of the ‘=’ sign represents one of
the dialed digits.
Example: '4xxx=Line_\\\@10.1.2.3'
This rule issues a call to 10.1.2.3 with the SIP ID of Line_ followed by the
last 3 digits of the dialed number.
For dial plan syntax rules for patterns entered to the left of the '=' sign, refer
to 'Syntax for Digit Maps and Dial Plans' on page 265.
Note: This parameter appears only in 'Advanced' mode.
Key Sequence
Flash keys sequence
style
Choose either 'Flash only' (default) or ‘Flash + digits sequence’.
‘Flash only’ = uses only the phone's Flash button. There are 3
scenarios:
(1) During an existing call, if the user presses Flash, the call is put on
hold; a dial tone is heard and the user is able to initiate a second call.
Once the second call is established, on-hooking transfers the first (held)
call to the second call.
(2) During an existing call, if the user presses Flash, the call is put on
hold and a dial tone is heard. The user can initiate a second call and
establish a 3-way conference by again pressing Flash after the second
call is initiated.
(3) During an existing call, if a call comes in (call waiting), pressing
Flash puts the active call on hold and answers the waiting call; pressing
Flash again toggles between these two calls.
‘Flash + digits sequence’ = a sequence of Flash + 1 holds a call or
toggles between two existing calls. Flash + 2 makes a call transfer.
Flash + 3 establishes a 3-way conference.
'Send Flash Hook Via SIP' = the user can modify the SIP INFO message
that is sent upon Flash. The user can change the Content Type header
field and Message Body field.
Note: This parameter appears only in 'Advanced' mode.
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Parameter Description
SIP INFO Header
When the key sequence is set to 'Send Flash Hook Via SIP', the user can
modify the Content Type header field of the SIP INFO message.
For example: "application/broadsoft; version = 1.0"
Note: This parameter appears only when the 'Key Sequence' field is set to
'Send Flash Hook Via SIP'.
SIP INFO Body
When the key sequence is set to 'Send Flash Hook Via SIP', the user can
modify the Message Body field of the SIP INFO message.
For example: " event flashhook"
Note: This parameter appears only when the 'Key Sequence' field is set to
'Send Flash Hook Via SIP'.
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5.3 Configuring Media Streaming Parameters
¾ To configure media streaming parameters:
In the 'Voice Over IP' screen, click the Media Streaming tab; the basic 'Media
Streaming' parameters screen opens. To view advanced parameters, click the
Advanced button.
Figure 5-4: VoIP - Media Streaming - Advanced
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Table 5-3: Media Streaming Tab Parameters Description
Parameter Description
Codecs
1st Codec Refer to 'Configuring Codecs' on page 49
2nd Codec Refer to 'Configuring Codecs' on page 49
3rd Codec Refer to 'Configuring Codecs' on page 49
4th Codec Refer to 'Configuring Codecs' on page 49
5th Codec Refer to 'Configuring Codecs' on page 49
6th Codec Refer to 'Configuring Codecs' on page 49
Media Streaming Parameters
Local RTP Port Range Contiguous Series of 8
Ports Starting From:
Defines the port range for Real Time Protocol (RTP) voice transport.
DTMF Relay RFC 2833
Payload Type
The RTP payload type used for RFC 2833 DTMF relay packets. Range = 0-
255. Default = 101.
G.726/16 Payload Type
The RTP payload type used for 16 kbps G.726 packets. Range = 0-255.
Default = 98.
Quality of Service Parameters
Type of Service (Hex)
This is a part of the IP header that defines the type of routing service to be
used to tag outgoing voice packets, originated from MP-20x. It is used to
tell routers along the way that this packet should get specific QoS. Leave
this value as 0xb8 (default) if you are unfamiliar with the Differentiated
Services IP protocol parameter.
G.723 Bitrate
G.723 Bitrate
Toggles between low and high bit rate for G.723.
5.3.1 Configuring Codecs
Codecs define the method of relaying voice data. Different codecs have different
characteristics, such as data compression and voice quality. For example, G.723 is a
codec that uses compression, so it is good for use where bandwidth is limited but its voice
quality is not as good compared to other codecs such as the G.711.
5.3.1.1 Supported Codecs
To make a call, at least one codec must be enabled. Moreover, all codecs may be enabled
for best performance. When you start a call to a remote party, your available codecs are
compared against the remote party's to determine which codec is to be used. The priority
by which the codecs are compared is according to the descending order of their list. To
change the priorities, rearrange the codecs in the required order.
If there is no codec that both parties have made available, the call attempt fails. Note that if
more than one codec is common to both parties, you cannot force which of the common
codecs that were found are used by the remote party's client. If you do wish to force the
use of a specific codec, leave only that codec checked.
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5.3.1.2 Packetization Time
The Packetization Time is the length of the digital voice segment that each packet holds.
The default is 20 millisecond packets. Selecting 10 millisecond packets reduces the delay
but increases the bandwidth consumption.
5.4 Configuring Voice and Fax Parameters
¾ To configure voice and fax parameters:
In the 'Voice Over IP' screen, click the Voice and Fax tab; the basic 'Voice and Fax'
parameters screen opens. To view advanced parameters, click the Advanced button.
Figure 5-5: Voice Over IP - Voice and Fax Screen
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Table 5-4: Voice and Fax Tab Parameters Description
Parameter Description
Gain Control
Enable Automatic Gain
Control
When enabled (when the box is checked), the device adjusts the voice
volume automatically to compensate for a weak or loud signal.
Automatic Gain Control
Direction
Determines whether the AGC is located before the Encoder input or after
the Decoder output.
Target Energy
The required output energy of the AGC.
Jitter Buffer
Minimum Delay
The initial and minimal delay of the adaptive jitter buffer mechanism, which
compensates for network problems. The value should be set according to
the expected average jitter in the network (in milliseconds). Default = 35
msec.
Optimization Factor
The adaptation rate of the jitter buffer mechanism. Higher values cause the
jitter buffer to respond faster to increased network jitter. Default = 7.
Silence Compression
Enable Silence
Compression
Check to enable silence compression for reducing the network bandwidth
consumption. Default = Disabled.
Enable G.711/G.726
Comfort Noise
When the Comfort Noise generation feature is enabled and silence is
detected, the device transmits a series of parameters called Silence
Information Descriptor (SID), which are used to reproduce the local
background noise at the remote (receiving) side.
Echo Cancellation
Enable Echo
Cancellation
Check to enable echo cancellation (disabling echo cancellation should be
done for testing purposes only). Default = Enabled.
Fax and Modem Settings
Fax Transport Mode
Selects the way fax calls are handled:
Transparent = Fax is transferred in-band (like a voice call) (can be used if
the codec is G.711)
T.38 Relay = Fax is relayed to the remote side according to the T.38
standard
VBD = (Voice Band Data) Switch to G.711 via SIP messaging
Bypass = An automatic switch to AudioCodes' proprietary payload type
(102, 103).
Max Rate
The maximum fax rate. Select from the drop-down list either:
2.4 Kbps, 4.8 Kbps, 7.2 Kbps, 9.6 Kbps, 12 Kbps or 14.4 Kbps (default).
Note: This parameter appears only if 'Fax Transport Mode' is “T.38 Relay”.
Max Buffer
The maximum amount of T.38 data stored on the MP-20x DSP. The valid
range is 128 to 2048. The default is 1024.
Max Datagram
The maximum total size of TCP/UDPTL packets that can be received at the
remote gateway. The valid range is 160 to 1020. The default is 320.
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Parameter Description
Image Data
Redundancy Level
The level for output Image Data (2400…14400 bps).
0 = No redundancy
1 to 3 = Redundancy level
T30 Control Data
Redundancy Level
The redundancy level for output T.30 Control Data (300 bps).
0 = No redundancy
1 to 7 = Redundancy level
Fax Relay Jitter Buffer
Delay
Configures the Fax Relay Jitter Buffer.
0 = Adaptive Jitter Buffer. The MP-20x DSP device sets the Jitter Buffer
size automatically and then adapts it according to network conditions.
1 to 511 = Fixed Jitter Buffer size (in msec).
Error Correction Mode
Check to enable fax error correction mode (ECM). Default = Enabled.
Note: This parameter appears only if 'Fax Transport Mode' is “T.38 Relay”.
Fax Bypass Payload
Type
Defines the payload type for fax in Bypass mode.
Note: This parameter appears only if 'Fax Transport Mode' is “Bypass”.
Modem Transport
Mode
Selects the way modem calls are handled:
Transparent = Data is transferred in-band (like a voice call). This can be
used if the codec is G.711.
Voice Band Data = Switch to G.711 via SIP messaging.
Bypass = An automatic switch to AudioCodes' proprietary payload type
(102, 103).
Note: If the Fax transport mode is Bypass or VBD, it must match the
Modem transport mode.
Modem Bypass
Payload Type
Defines the payload type for modems in Bypass mode.
Note: This parameter appears only if 'Modem Transport Mode' is “Bypass”.
Fax/Modem Bypass
Codec
Select the codec to be used for the VBD and Bypass modes. PCMA
(default) or PCMU.
G.711 64 kbps A-Law
-ORG.711 64 kbps u-Law
CED Transfer Mode
By Fax Relay: When the MP-20x is the receiver side, Switch to Fax
relay is enabled upon CED. This allows a high reliable Fax-over-IP call
establishment at the beginning of CED tone.
In Voice Or PCM Bypass: When the MP-20x is the receiver side, to
avoid possible conflicts with low-speed modems, the CED (ANS) relay
by FoIP protocol may be disabled by setting the CED transfer mode to
‘In Voice Or PCM Bypass’. In this case, the MP-20x does not initiate the
Fax Relay on detecting CED tone in absence of CNG, but switches to
VBD or remains in voice mode (depends on the Modem Transport
Mode). The MP-20x switches to FoIP later when it defines exactly that a
monitored call is the fax call (CED and CND or V.21 Preamble).
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Parameter Description
Enable CNG Detection
Check to enable detection of the fax CNG signal. When the local fax
machine connected to MP-20x receives a fax, MP-20x switches to T.38 fax
relay upon detection of the CED signal from the remote fax. If the local fax
machine sends a fax, MP-20x switches to T.38 only after detecting the
CNG signal from the local side and the CED signal from the remote side. If
the “Enable CNG Detection” check box is enabled, MP-20x switches to
T.38 relay immediately upon detection of the CNG signal from the local
side, without waiting for the CED signal from the remote side. Default =
Disabled.
Switch To Fax Only By
The Answering Side
Typically, switching to fax mode is the responsibility of the answering side.
However, in some cases, the sending machine can also switch to fax
mode. If this check box is marked, the sending machine does not switch to
fax, but allows the answering side to detect the fax and switch to fax mode.
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5.5 Configuring Services Parameters
¾ To configure supplementary services:
In the 'Voice Over IP' screen, click the Services tab; the basic 'Services' parameters
screen opens. To view advanced parameters, click the Advanced button.
Figure 5-6: Voice Over IP - Services Screen
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Table 5-5: Services Tab Parameters Description
Parameter Description
Call Waiting
Enabled
Check to enable the Call Waiting feature.
Call Waiting SIP Reply
The response message sent when another call arrives while a call is in
progress. There are two possibilities: 180 Ringing or 182 Queued (default).
Enable Caller ID Type II
Checked to enable caller ID of a waiting call (Called Caller ID type 2).
Call Forward
Enabled
Enables call forwarding. The Call Forward feature permits a user to redirect
incoming calls addressed to him/her to another number. The user’s ability
to originate calls is unaffected by Call Forward.
Note: The Call Forward feature is functional only when MP-20x is
registered to a proxy.
Call Forward Type
Three types of Call Forwarding exist:
Unconditional: When selected, incoming calls are forwarded
independently of the status of the endpoint.
Busy: When selected, incoming calls are forwarded only if the endpoint
is busy, i.e., if all lines are active.
No Reply: When selected, incoming calls are forwarded only if the
endpoint does not answer before a pre-configured timeout (see next
parameter).
Time for No Reply
Forward
If you specify 5 seconds for this parameter, for example, and 'No Reply' is
selected for parameter 'Call Forward Type' (see above), incoming calls are
forwarded only after 5 seconds lapse.
Note: This parameter is available only when "No Reply" is selected for the
parameter 'Call Forward Type'.
Key Sequence
The default is *72 but users can modify to any sequence of up to 2 digits,
i.e., *n or *nm.
Do Not Disturb
Enabled
Check this box to enable the Do Not Disturb (DND) feature. This feature
allows you to prevent incoming calls from ringing at your phone. When Do
Not Disturb is enabled, callers receive a busy signal or an announcement.
The DND is activated using the phone keypad. Default is disabled.
Key Sequence
The key sequence to activate/deactivate the DND feature.
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Parameter Description
3 Way Conference
Notes for MP-202C when three-way conferencing is enabled and two lines are enabled:
• When both phone lines are active (off hook or ringing), a user can’t place a call on hold. If a call is
placed on hold, a busy tone is played.
• When there are two active calls on one line(*), the other line is unavailable (i.e., a busy tone is
played on the other phone). Any incoming call to the second line is rejected.
• When both lines are in a call, a call waiting for either line is rejected.
• No confirmation tone is played after a successful call transfer in “flash + digits” mode.
* A two active call scenario starts when a user places a call on hold and hears the dial tone.
3 Way Conference
Mode
Selects how 3-way conference calls are handled:
Local: locally by the device
Remote: by a remote media server (RFC 4240)
Media Server Address
The address of the remote media server that handles conference calls.
Note: This parameter is available only when "Remote" is selected for the
parameter '3 Way Conference Mode'.
Message Waiting Indication
Enabled
If a user has an unheard voice mail message, a stutter dial tone is heard
when the user picks up the phone. In addition, MP-20x generates an FSK
signal to the phone to indicate that a message is waiting. If the telephone
connected to MP-20x supports this feature, an MWI ‘envelope icon’ is
displayed.
Subscribe to MWI
Select this check box if you must register with a MWI subscriber server. If
so, configure the three parameters below.
MWI Server IP Address
or Host Name
The IP address or host name of the MWI server.
Note: This parameter is available only when the check box 'Subscribe to
MWI' is selected.
MWI Server Port
The port number of the MWI server.
Note: This parameter is available only when the check box 'Subscribe to
MWI' is selected.
MWI Subscribe
Expiration TIme
The interval between registrations.
Note: This parameter is available only when the check box 'Subscribe to
MWI' is selected.
General Parameters
Stutter Tone Duration
When you enable message waiting and an unheard message exists, you'll
hear a stutter tone for the duration configured in this parameter and/or when
you activate the call forwarding feature (refer to 'Forwarding Calls to
Another Phone' on page 69)
Out of Service Behavior
Defines the tone which is played instead of a dial tone if the user configured
a registrar IP and the registration failed. When the Reorder tone is selected,
a Reorder tone is played instead of a dial tone. If “No Tone” is selected,
then no tone is played.
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MP-20x Telephone Adapter 5. Configuring VoIP Parameters
5.6 Configuring Line Settings Screen
Before starting to make phone calls, configure each line's parameters.
Note: The maximum number of telephone lines that you can configure, depends on
the MP-20x model.
¾ To configure telephone lines (ports):
1. In the 'Voice Over IP' screen, click the Line Settings tab; the 'Line Settings' screen
opens.
Figure 5-7: Voice Over IP - Line Settings Screen
2. Click the Edit icon in each line to configure the line's different parameters.
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Figure 5-8: VoIP - Line Settings - Defining a New Line
Table 5-6: Line Settings Tab Parameters Description
Parameter Description
Line Number
A telephone port of MP-20x to which you can connect a standard (POTS)
telephone. You can manage which telephone is operational by checking the
check-box adjacent to it.
User ID
This telephone's VoIP user ID, used for identification to initiate and accept
calls.
Block Caller ID
Check this check box to hide your ID from the remote party.
Display Name
Used to define a name to intuitively identify the line. A free text description
to be displayed to remote parties as your caller ID.
SIP Proxy
Authentication User
Name
The user name received from the VoIP Service Provider. Used when
sending a response to Unauthorized or Proxy Authentication Requested
(401/407).
Authentication
Password
The password received from the VoIP Service Provider. Used when
sending a response to Unauthorized or Proxy Authentication Requested
(401/407).
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MP-20x Telephone Adapter 5. Configuring VoIP Parameters
Parameter Description
Advanced Line Parameters
Line Voice Volume
The voice volume of line (the gain from the network towards the local
phone). Default = 0 dB.
Enable Supplementary
Services
If it is checked, the supplementary services are enabled on this line. One
can enable/disable the supplementary services per line.
Enable Automatic
Dialing
If it is checked, the Automatic Dialing feature is enabled, which allows a
user-defined (see below) phone number to be automatically dialed when
the line is off-hooked.
Automatic Dialing
Timeout
Automatic dialing is activated only after this defined time and if the user has
not started dialing before this timeout.
Automatic Dialing
Destination
The destination that is automatically dialed. This can be a phone number or
a domain name (for example, user@101.10.13.2 or user@domain name).
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5.7 Configuring Speed Dial Settings
Use the 'Speed Dial Settings' screen to associate a called party's contact parameters
(including the IP address of his/her ATA and Line ID) with a number that you'll dial to call
the called part. The number of speed-dialing codes that can be defined is unlimited. Use
the screen to define a destination type: Proxy, Local Line or Direct Call.
Note: When connecting MP-20x to a World-Wide SIP Server (refer to 'Connecting
MP-20x's VoIP to a VoIP Service Provider' on page 65), you don't need to
configure 'Speed Dial Settings'.
¾ To configure speed dialing:
1. In the 'Voice Over IP' screen, click the Speed Dial tab; the 'Speed Dial' screen opens.
Figure 5-9: Voice Over IP - Speed Dial Screen
Click New to add a new speed dial entry; the 'Speed Dial Settings' screen appears.
The figure below shows how a proxy speed dial is configured. The proxy IP address is
'Office' and number to speed-dial is 123.
Figure 5-10: VoIP - Speed Dial Settings
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MP-20x Telephone Adapter 5. Configuring VoIP Parameters
Table 5-7: Speed Dial Settings - via Proxy
Parameter Description
Speed Dial
Defines the number to dial.
Destination
Defines the entry's destination, in this case a proxy server.
User ID
Defines the user ID to call.
The figure below shows how a local line speed dial is configured from port ‘Line 2’ on MP20x to port ‘Line 1’ on MP-20x. The speed dial number 226 is now associated with Line 1
on MP-20x.
Figure 5-11: VoIP - Speed Dial - Local Line
Click OK; you're returned to the Voice Over IP' screen displaying the configured speed
dial (refer to the figure below, displaying how two local lines are configured for speed
dial).
Figure 5-12: VoIP - Speed Dial Settings - Local Line
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The figure below shows how a speed dial direct call is configured. The call is configured to
one of the pre-configured lines of a remote device (10.16.2.26).
Figure 5-13: VoIP - Speed Dial - Direct Call
Table 5-8: 'Speed Dial Settings' - Direct Call
Parameter Description
Speed Dial
A shortcut number which you dial to call this party.
Destination
The entry's destination, in this case a direct call.
User ID
Specify the remote party's user ID.
IP Address or Host
Name
Specify the remote party's IP Address or host name.
Port
The SIP UDP or TCP port of the remote party.
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MP-20x Telephone Adapter 5. Configuring VoIP Parameters
5.8 Configuring Telephone Interfaces
Use the 'Telephone Interface' screen to enable and disable FXS (telephone interface)
parameters.
¾ To configure polarity reversal:
1. In the 'Voice Over IP' screen, click the Telephone Interface tab; the 'Telephone
Interface' screen opens.
Figure 5-14: Voice Over IP - Telephone Interface Screen
2. Select the check box 'Enabled' to enable the Polarity Reversal feature. When this
feature is enabled, the FXS polarity is reversed to indicate the start of a VoIP session,
and is reversed back when the VoIP session ends.
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Reader’s Notes
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MP-20x Telephone Adapter 6. Connecting MP-20x to a VoIP Service Provider
6 Connecting MP-20x to a VoIP Service
Provider
Using MP-20x's VoIP capabilities, it is possible to connect to a remote SIP server in order
to conduct worldwide phone calls.
The following section describes how to place a worldwide phone call utilizing MP-20x's
VoIP capabilities over a SIP server. Verify that your Telephone Adapter and telephone are
correctly connected and that your WAN connection is up.
6.1 Opening a SIP Account
Before you can connect to a SIP server, it is necessary that you obtain a SIP account.
6.2 Configuring VoIP Parameters
Note: This section describes the minimal set of changes required to connect to a
VoIP Service Provider. Other configuration changes might be required to
connect to some Service Providers.
¾ To configure VoIP parameters:
1. In the left sidebar, click the menu Voice Over IP; the ‘Voice Over IP’ screen opens.
2. Click the Line Settings tab. Enable only the lines that you are using, by selecting the
check box, and then click Apply.
Figure 6-1: Voice Over IP - Line Settings Screen
Note: The maximum number of telephone lines that you can configure depends on
the MP-20x model.
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3. Click the Edit icon corresponding to the line that you want to configure (example, line
1); the ‘Line Settings’ screen opens. Use the configuration values provided by your
ISP to configure the parameters in this screen.
Figure 6-2: VoIP - Line Settings - Defining a New Line
4. Click the Signaling Protocol tab and then select the ‘Use SIP Proxy’ check box (refer
to 'Configuring Signaling Protocol Parameters' on page 37).
5. In the field ‘Proxy IP Address or Host Name’, define the ISP’s SIP proxy, provided by
the ISP (refer to 'Configuring Signaling Protocol Parameters' on page 37).
6. Click OK or Apply to complete the VoIP configuration.
Note: Check that MP-20x was successfully registered by clicking System
Monitoring menu > tab Voice over IP; entry ‘SIP Registration’ should indicate
‘Registered’ for the line(s) you configured. Phone 1 and Phone 2 LEDs should
be flashing slowly.
Pick up the phone receiver and listen for the dial tone; you’re now ready to place an
outgoing call.
All your settings are saved in MP-20x's non-volatile memory. From now on, you won’t
need the PC to make VoIP calls.
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MP-20x Telephone Adapter 7. Making VoIP Calls
7 Making VoIP Calls
Users connected to MP-20x can place calls, put calls on hold, transfer calls and manage 3way conferences. The following describes how to perform these operations.
7.1 Placing a Call
¾ To place a call:
1. Pick up the phone.
2. Make sure that you can hear a dial tone
3. Dial the remote party's number or pre-configured speed dial number.
7.2 Answering a Waiting Call
¾ To answer a waiting call when 'Flash only' is configured:
1. When you hear a call waiting tone (during a call), press 'Flash' on the phone; this puts
the active call on hold and switches to the waiting call.
2. To return to the original call, press Flash again. You can toggle from one party to
another as much as you like by pressing Flash.
¾ To answer a waiting call when 'Flash + digits sequence' is configured:
1. When you hear the call waiting tone (during a call), press the 'Flash' key on the phone
and then the '1' key; this puts the original call on hold and switches to the waiting call.
2. To return to the original call, press Flash+1 again. You can toggle from one party to
another as much as you like by pressing Flash+1.
For configuring call waiting, refer to 'Configuring Dialing Parameters' on page 43.
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7.3 Putting a Call on Hold
¾ To place the remote party on hold when 'Flash only' is configured:
1. During a call, press 'Flash' on the phone; the phone plays a dial tone. At this point you
can initiate a second call by dialing another party's number.
Note: If you press 'Flash' again before the other party answers, you'll revert to the
original call. If, however, the other party answers and you press 'Flash', a 3way conference is established.
¾ To place the remote party on hold when 'Flash + digits sequence' is
configured:
1. Press the 'Flash' key and then the '1' key on the phone; the phone plays a dial tone. At
this point you can initiate a second call by dialing another party's number.
2. To cancel the hold state and resume the previous phone call, press 'Flash' and then
'1'.
For configuring parameters for placing a call on hold, refer to 'Configuring Dialing
Parameters' on page 43.
7.4 Performing a Call Transfer
¾ To transfer an existing call with (B) to a third party (C) when 'Flash only'
is configured:
1. During a call with party B, press 'Flash'; Party B is placed on hold and you'll hear a dial
tone.
2. Dial party C's number.
3. You can wait for C to answer or not.
4. On hook; you've transferred B to C.
¾ To transfer an existing call with (B) to a third party (C) when 'Flash +
digits sequence' is configured:
1. During a call with party B, press 'Flash' and then the '1' key on the phone; Party B is
placed on hold and you'll hear a dial tone.
2. Dial party C's number.
3. You can wait for C to answer or not.
4. Press the 'Flash' key and then the '2'; you've transferred B to C; a warning tone is
heard.
For configuring call transfer, refer to 'Configuring Dialing Parameters' on page 43.
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MP-20x Telephone Adapter 7. Making VoIP Calls
7.5 Establishing a 3-Way Conference
¾ To extend an existing call with party B into a 3-way conference by
bringing in party C when 'Flash only' is configured:
1. During a call with party B, press 'Flash'; Party B is placed on hold and you'll hear a dial
tone.
2. Dial party C's number and wait until the call is established.
3. Press 'Flash' again to put B and C in a 3-way conference.
4. To end the 3-way conference call, on-hook. Alternatively, press 'Flash' again.
¾ To extend an existing call with party B into a 3-way conference by
bringing in party C when 'Flash + digits sequence' is configured:
1. During a call with party B, press 'Flash' and then the '1' key on the phone; Party B is
now placed on hold and you'll hear a dial tone.
2. Dial party C's number and wait until the call is established.
3. Press 'Flash' and then the '3' key to put B and C in a 3-way conference.
4. To end the 3-way conference call, on-hook. Alternatively, press 'Flash' and then the '3'
key.
For configuring call transfer parameters, refer to 'Configuring Dialing Parameters' on page
43.
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7.6 Forwarding Calls to Another Phone
¾ To forward calls to another phone:
1. First configure call forwarding (refer to 'Configuring Services Parameters' on page 54)
2. Pick up the phone.
3. Make sure that you can hear a dial tone
4. Dial the call forward key sequence, for example, *32; you'll hear a dial tone.
5. Dial the number of the phone to which you want calls forwarded; you'll hear a stutter
tone (refer to 'Configuring Services Parameters' on page 54).
6. Repl
ace the receiver; from now on, all incoming calls are forwarded. Every time you
pick up this receiver you'll hear the stutter tone for the length of time you configured for
parameter 'Stutter Tone Duration'.
¾ To deactivate calls forwarding:
1. Pick up the phone; you'll hear a stutter tone.
2. Dial the call forward key sequence.
3. Replace the receiver.
4. To make sure you've de-activated, pick up the phone again; you should hear a regular
dial tone and not the stutter tone.
Note: The Call Forward feature is functional only when MP-20x is registered to a
proxy.
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MP-20x Telephone Adapter 8. Quality of Service (QoS)
8 Quality of Service (QoS)
8.1 QoS Wizard
¾ To use the QoS Wizard:
1. From the sidebar menu, click the QoS menu link; the QoS Wizard tab's screen
appears by default.
Figure 8-1: QoS Wizard Tab Screen
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2. From the 'WAN Devices Bandwidth (Rx/Tx)' drop-down list, select the Rx and Tx
bandwidth limitation for the device.
3. In the 'QoS Profiles' group, select a profile.
4. Click OK.
Note: Selecting a new QoS profile deletes all previous QoS settings.
8.2 Traffic Shaping
Traffic Shaping is the solution for managing and avoiding congestion where a high speed
LAN meets limited broadband bandwidth. A user may have, for example, a 100 Mbps
Ethernet LAN with a 100 Mbps WAN interface router. The router may communicate with
the ISP using a modem with a bandwidth of 2 Mbps. This typical configuration makes the
modem, having no QoS module, the bottleneck. The router sends traffic as fast as it is
received, while its well-designed QoS algorithms are left unused. Traffic shaping limits the
bandwidth of the router, artificially forcing the router to be the bottleneck.
A traffic shaper is essentially a regulated queue that accepts uneven and/or bursty flows of
packets and transmits them in a steady, predictable stream so that the network is not
overwhelmed with traffic.
While Traffic Priority allows basic prioritization of packets, Traffic Shaping provides more
sophisticated definitions such as:
Bandwidth limit for each device
Bandwidth limit for classes of rules
Prioritization policy
TCP serialization on a device
In addition, you can define QoS traffic shaping rules for a default device. These rules are
used on a device that has no definitions of its own. This enables the definition of QoS rules
on Default WAN, for example, and their maintenance even if the PPP or bridge device over
the WAN is removed.
MP-20x also supports dynamic traffic shaping during a call. Traffic shaping is critical in
residential VoIP gateways because of the bottleneck created in the ADSL or Cable modem,
mainly in the upload direction. Dynamic traffic shaping ensures a minimum bandwidth for
VoIP calls. Without dynamic traffic shaping, traffic shaping limits the bandwidth at all times,
even if the user is not making a VoIP call and therefore, the service provider needs to
configure the QoS traffic shaping transmit (Tx) bandwidth according to the user's specific
upload bandwidth. Configuring a lower value results in a lower upload bandwidth (not only
during VoIP calls).
Dynamic traffic shaping enables the service provider to configure two upload traffic shaping
bandwidth parameters:
"Tx Bandwidth" - for all traffic
"Tx Bandwidth during Call" - for VoIP calls
MP-20x normally uses the "Tx Bandwidth" value. When the user makes a VoIP call (i.e.
any phone/s connected to MP-20x is ringing or off-hook), MP-20x switches to use the "Tx
Bandwidth during Call" value.
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MP-20x Telephone Adapter 8. Quality of Service (QoS)
8.2.1 Device Traffic Shaping
This section describes the different Traffic Shaping screens and terms, and presents the
feature’s configuration logic.
¾ To add a traffic shaping device:
1. On the sidebar, click the QoS menu, and then click the tab Traffic Shaping.
2. Click the New icon; the screen 'Add Device Traffic Shaping’ opens (refer to the figure).
Figure 8-2: QoS - Add Device Traffic Shaping
3. From the drop-down list, select the device for which to shape traffic. The drop-down
list includes all your interfaces as well as category options (e.g., All LAN Devices, All
WAN Devices) and VPNs such as PPoE, PPTP and L2TP (if defined). For example,
select the option 'WAN Ethernet', and then click OK; the ’Edit Device Traffic Shaping’
screen opens (refer to the figure).
Figure 8-3: QoS - Edit Device Traffic Shaping
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4. Configure the following fi elds:
Table 8-1: Edit Traffic Shaping - Parameter Descriptions
Parameter Description
Tx Bandwidth
This parameter limits MP-20x’s bandwidth transmission rate. The purpose
is to limit the bandwidth of the WAN device to that of the weakest outbound
link, for instance, the DSL speed provided by the ISP. This forces MP-20x
to be the network bottleneck, where sophisticated QoS prioritization can be
performed. If the device’s bandwidth is not limited correctly, the bottleneck
will be in an unknown router or modem on the network path, rendering MP20x QoS useless.
Rx Bandwidth
In the same manner, this parameter limits MP-20x’s bandwidth reception
rate to that of the DSL modem.
TCP Serialization
You can enable TCP Serialization in its drop-down list, either for active
voice calls only or for all traffic. The screen refreshes, adding a ’Maximum
Delay’ field (refer to the figure). This function allows you to define the
maximal allowed transmission time frame (in milliseconds) of a single
packet. Any packet that requires a longer time to be transmitted is
fragmented to smaller sections. This avoids transmission of large, bursty
packets that may cause delay or jitter for real-time traffic such as VoIP.
Enable Dynamic Traffic
Shaping
Select this check box if you want to configure traffic shaping specifically for
VoIP calls (refer to Section 8.2 on page 72). When
selected, the "Tx
Bandwidth During VoIP Call" field appears. Enter the bandwidth for VoIP
calls. MP-20x normally uses the "Tx Bandwidth" parameter value. When the
user makes a VoIP call (i.e. any phone/s connected to MP-20x is ringing or
off-hook), MP-20x switches to use the "Tx Bandwidth during Call"
parameter value.
8.2.2 Shaping Classes
The bandwidth of a device can be divided to reserve constant portions of bandwidth to
predefined traffic types. Such a portion is known as a Shaping Class. When not used by its
predefined traffic type, or owner (for example VoIP), the class is then available to all other
traffic. However when needed, the entire class is reserved solely for its owner. Moreover,
you can limit the maximum bandwidth that a class can use even if the entire bandwidth is
available.
When a shaping class is defined for a specific traffic type, two shaping classes are created.
The second class is the 'Default Class', responsible for all the packets that do not match
the defined shaping class, or any other classes that may be defined on the device. This
can be viewed in the Class Statistics screen.
¾ To add a shaping class:
1. On the sidebar, click the QoS menu, and then click the tab Traffic Shaping.
2. Click the Edit icon corresponding to the Device (e.g., WAN); the screen 'Edit Device
Traffic Shaping' opens.
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3. In the section 'Tx Traffic Shaping', click the New icon; the screen 'Add Shaping Class'
opens.
Figure 8-4: QoS - Edit Device Traffic Shaping - Add Class
4. Name the new class, and then click OK to save the settings; the screen 'Edit Device
Traffic Shaping' opens.
5. Edit the shaping class, by clicking the Edit icon corresponding to the class that you
added; the 'Edit Class' screen opens (refer to the figure).
Figure 8-5: QoS - Edit Device Traffic Shaping - Edit Class
6. Configure the following fi elds:
Table 8-2: Edit Shaping Class - Parameter Descriptions
Parameter Description
Name:
The name of the class.
Class Priority
The class can be granted one of eight priority levels, zero being the highest
and seven the lowest.
Tx Bandwidth
The reserved transmission bandwidth (Committed Information Rate, or
CIR), in kbps, for each class
Rx Bandwidth
The reserved reception bandwidth (Committed Information Rate, or CIR) ,
in kbps, for each class
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Parameter Description
Policy
The class policy determines the policy of routing packets inside the class:
Priority: Priority queuing utilizes multiple queues so that traffic is dis-
tributed among queues based on priority. This priority is defined
according to packet priority, which can be defined explicitly, by a DSCP
value, or by a 802.1p value.
FIFO: First In First Out. This priority queue ignores any previously-
marked priority that packets may have.
Fairness: The fairness algorithm ensures no starvation by granting all
packets a certain level of priority.
RED: Random Early Detection. Utilizes statistical methods to drop
packets in a ‘probabilistic’ way before queues overflow. Dropping
packets in this way slows a source down enough to keep the queue
steady and reduces the number of packets that would be lost when a
queue overflows and a host is transmitting at a high rate.
Schedule:
By default, the class is always active. However, you can configure
scheduler rules to define time segments during which the class may be
active.
8.2.2.1 Class Rules
Class rules define which packets belong to the class. They must be defined to associate
packets that meet them with the shaping class. Without class rules, the shaping class has
no effect whatsoever. Each class can have outbound and/or inbound rules, for outgoing
and incoming traffic respectively. For example, you can define that all outgoing packets
from computer A in your LAN belong to your VoIP class. These packets are limited to the
class settings (bandwidth, schedule, etc.). In addition, you can define the traffic protocol
and priority for each rule (this is not mandatory as in Traffic Priority rules).
8.2.2.1.1 Inbound and Outbound Data
MP-20x can control outgoing data easily. It can queue packets, delay them, give
precedence to other packets, or drop them. This helps in resolving upload (Tx) traffic
bottlenecks and in most cases is sufficient. However, in the case of download (Rx) traffic
bottlenecks, the ability to control the flow is much more limited. MP-20x cannot queue
packets, since in most cases the LAN is much faster then the WAN, and when MP-20x
receives a packet from the WAN, it passes it immediately to the LAN.
QoS for ingress data has the following limitations, which do not exist for outgoing data:
QoS can only be applied to TCP streams (UDP streams cannot be delayed).
No borrowing mechanism.
When reserving Rx bandwidth, it is strictly taken from the bandwidth of all other
classes.
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Furthermore, MP-20x cannot control the behavior of its WAN MP-20x (usually the ISP),
which may not have proper QoS handling. Unfortunately, this is a common situation. Let’s
look at a scenario of downloading a large file and surfing the Internet at the same time.
Downloading the file is distinguished by small requests, followed by very large responses.
This may result in blocking HTML traffic at the ISP. A solution for such a situation is limiting
the bandwidth of low-priority TCP connections (such as the file download).
To add outbound/inbound class rules, refer to 'Traffic Priority' on page 77.
Note: The hierarchy of the class rules is determined by the order of their addition to
the class. For example, if your first rule is 'match packets with any source
address, any destination address, and any protocol to this class; then all
packets traveling through MP-20x are associated with the specific class. Any
rules defined later do not have any effect.
8.3 Traffic Priority
Traffic Priority allows you to manage and avoid traffic congestion by defining inbound and
outbound priority rules for each device on your MP-20x. These rules determine the priority
assigned to packets traveling through the device. QoS parameters (DSCP marking and
packet priority) are set per packet, on an application basis.
You can set QoS parameters using flexible rules, according to the following parameters:
Source/destination IP address, MAC address or host name
Device
Source/destination ports
Limit the rule for specific days and hours; MP-20x supports two priority marking methods
for packet prioritization:
DSCP
802.1p Priority
The matching of packets by rules is connection-based, known as Stateful Packet
Inspection (SPI), using the same connection-tracking mechanism used by firewall. Once a
packet matches a rule, all subsequent packets with the same attributes receive the same
QoS parameters, both inbound and outbound.
A packet can match more than one rule. Therefore:
The first class rule has precedence over all other class rules (scanning is stopped
once the first rule is reached).
The first traffic-priority (classless) rule has precedence over all other traffic-priority
rules.
There is no prevention of a traffic-priority rule conflicting with a class rule. In this case,
the priority and DSCP setting of the class rule (if given) takes precedence.
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Connection-based QoS also allows inheriting QoS parameters by some of the applications
that open subsequent connections. For instance, you can define QoS rules on SIP, and the
rules then apply to both control and data ports (even if the data ports are unknown). This
feature applies to all applications that have ALG at firewall:
Any
User Defined (FTP, HTTP, HTTPS, TFTP, IMAP, PING, POP3, SNMP, SMTP, Telnet,
L2TP, Traceroute or any other protocol)
¾ To set traffic priority rules:
1. From the sidebar menu, click the QoS menu, and then select the Traffic Priority tab;
the 'Traffic Priority' screen appears. This screen is divided into two identical sections,
one for ’QoS Input Rules’ and the other for ’QoS Output Rules’, which are for
prioritizing inbound and outbound traffic respectively. Each section lists all the devices
on which rules can be set. You can set rules on all devices at once by clicking the link
New Entry corresponding to 'All Devices'.
Figure 8-6: QoS - Traffic Shaping
2. After clicking the appropriate New Entry link, the screen 'Add Traffic Priority Rule'
opens (refer to the figure).
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Figure 8-7: QoS - Add Traffic Priority Rule
Table 8-3: Add Traffic Priority Rule - Parameter Descriptions
Parameter Description
Source Address
The source address of the packets sent to or received from the network
object. From the drop-down list choose 'Any', 'User Defined' or the host.
Destination Address
The destination address of the packets sent to or received from the network
object. This address can be configured in the same manner as the source
address. From the drop-down list choose 'Any', 'User Defined' or the host.
Protocol
From the drop-down list, choose a specific traffic protocol, or add a new
one by choosing 'User Defined'; the screen 'Edit Service' opens. Click the
icon 'new' under the column 'Action'; this commences a sequence that adds
a new protocol.
QoS Operation
In this screen section, set a Quality of Service working method. Check
parameter 'Set Priority' or 'Set DSCP' (refer to the descriptions below).
Set Priority
Check this check box to add a priority to the rule; the screen 'Edit Service'
opens, allowing you to select between one of eight priority levels, 0 =
lowest and 7 = highest (each priority level is mapped to low/medium/high
priority). This sets the priority of a packet on the connection matching the
rule, while routing the packet.
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Parameter Description
Set DSCP
Check this check box to mark a DSCP value on packets matching this rule;
the screen 'Edit Service' opens, allowing you to enter the hexadecimal
value of the DSCP.
Log Packets Matched
by This Rule
Under the screen section 'Logging', this check box must be checked in
order to log the first packet from a connection that was matched by this
rule.
Schedule
'Always' or 'User Defined'. By default, the rule is always active. However,
you can configure scheduler rules in order to define time segments during
which the rule may be active.
3. Click OK to save the settings.
8.4 DSCP Mapping
To understand what is Differentiated Services Code Point (DSCP), one must first be
familiarized with the Differentiated Services model.
Differentiated Services (Diffserv) is a Class of Service (CoS) model that enhances besteffort Internet services by differentiating traffic by users, service requirements and other
criteria. Packets are specifically marked, allowing network nodes to provide different levels
of service, as appropriate for voice calls, video playback or other delay-sensitive
applications, via priority queuing or bandwidth allocation, or by choosing dedicated routes
for specific traffic flows.
Diffserv defines a field in IP packet headers referred to as DSCP. Hosts or routers passing
traffic to a Diffserv-enabled network typically mark each transmitted packet with an
appropriate DSCP. The DSCP markings are used by Diffserv network routers to
appropriately classify packets and to apply particular queue handling or scheduling
behavior.
MP-20x provides a table of predefined DSCP values, which are mapped to 802.1p priority
marking method. You can edit or delete any of the existing DSCP setting, as well as add
new entries.
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¾ To set DSCP rules:
1. From the sidebar menu, click the QoS menu link, and then click the DSCP Settings
tab; The following screen appears:
Figure 8-8: QoS - DSCP Settings
2. To edit an existing entry, click its corresponding Edit icon. To add a new entry, click
the New icon. In both cases, the ’Edit DSCP Settings’ screen appears:
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Figure 8-9: QoS - Edit DSCP Settings
3. Configure the following fi elds:
Table 8-4: Edit DSCP Settings- Parameter Descriptions
Parameter Description
DSCP Value (hex)
Enter a hexadecimal number to serve as the DSCP value.
802.1p Priority
Select a 802.1p priority level from the drop-down list (each priority level is
mapped to low/medium/high priority).
4. Click OK to save the settings.
Note: The DSCP value overriding the priority of incoming packets with an
unassigned value (priority 0, assumed to be a no-priority-set) is ‘0x0’. By
default, this value is mapped to 802.1p priority level ‘0 -Low’, which means that
such packets receive the lowest priority.
8.5 802.1p Mapping
The IEEE 802.1p priority marking method is a standard for prioritizing network traffic at the
data link/Mac sub-layer. 802.1p traffic is simply classified and sent to the destination, with
no bandwidth reservations established.
The 802.1p header includes a 3-bit prioritization field, which allows packets to be grouped
into eight levels of priority. MP-20x maps these eight levels to three main priorities: high,
medium and low. By default, values six and seven are mapped to high priority, which may
be assigned to network-critical traffic. Values four and five are mapped to medium priority,
which may be applied to delay-sensitive applications, such as interactive video and voice.
Values three to zero are mapped to low priority, which may range from controlled-load applications down to ‘loss eligible’ traffic. The zero value is normally used for best-effort
traffic. It is the default value for traffic with unassigned priority.
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¾ To set 802.1p rules:
1. From the sidebar menu, click the QoS menu link, and then click the 802.1p Settings
tab; the following screen opens:
Figure 8-10: QoS - 802.1p Settings
2. The eight 802.1p values are pre-configured with the three priority levels: high, medium
and low. You can change these levels for each of the eight values in their respective
drop-down list.
3. Click OK to save the settings.
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8.6 Class Statistics
MP-20x provides you with accurate, real-time information on the traffic passing through
your defined device classes. For example, the amount of packets sent, dropped or
delayed, are just a few of the parameters that you can monitor per each shaping class.
¾ To view your class statistics:
From the sidebar menu, click the QoS menu link, and then click the Class Statistics
tab; the following screen opens:
Figure 8-11: QoS - Class Statistics
Note: Class statistics are only available after defining at least one class (otherwise
the screen does not present any information).
8.7 Configuring Basic VoIP QoS
The 'Traffic Shaping' feature only ensures priority to calls that originate from inside MP-20x.
When giving VoIP priority over data, the bottleneck is effectively moved from the Cable /
ADSL modem into MP-20x. To give priority to calls from the LAN, you must define a traffic
priority rule (for SIP and RTP from the device on the LAN).
This section recommends a minimal QoS configuration that ensures sufficient QoS for
VoIP calls when MP-20x is connected behind a broadband (cable or DSL) modem with
limited uplink bandwidth and the user runs bandwidth-consuming applications on their PC.
Since most modems do not have any priority mechanisms, the Tx bandwidth of MP-20x
should be limited according to the modem’s uplink bandwidth. Since MP-20x automatically
gives higher priority to VoIP packets (in its internal queues), it is not necessary to define
traffic shaping classes.
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¾ To perform a minimal QoS configuration for VoIP:
1. From the sidebar menu, click the QoS menu link, and then click the Traffic Shaping
tab; the Quality of Service - Traffic Shaping screen opens.
2. Click the New icon; the screen 'Add Device Traffic Shaping' opens.
3. From the 'Device' drop-down list, select 'Default WAN Device' (or your PPTP/L2TP
connection you have created) and then click OK; the screen 'Edit Device Traffic
Shaping' opens.
4. Limit the Tx bandwidth (parameter 'Tx Bandwidth') according to your modem’s uplink
bandwidth.
5. To prevent jitter in outgoing RTP packets, from the 'TCP Serialization' drop-down list,
select 'Enabled', and then use parameter 'Maximum Delay' to define the maximum
allowed delay (e.g. 20 milliseconds). This causes long TCP packets to be fragmented
when there is an active voice call.
Figure 8-12: QoS - Edit Device Traffic Shaping
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6. Click OK to apply the new definition.
Figure 8-13: QoS - Edit Device Traffic Shaping - Submitting the Configuration
7. Click OK again to exit the 'QoS' page and return to the main page.
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9 LAN Wireless Connection
You can configure MP-20x's wireless connection, using one of the following methods:
'Quick Setup' screen (Quick Setup menu - refer to 'Configuring VoIP Parameters' on
page 37) - m
ainly for enabling wireless.
'Network Connections' screen (Network Connections menu), for (enabling wireless)
advanced wireless settings, as discussed in this section.
Note: To establish a wireless network connection between a computer and the MP-
20x, you must also configure the PC for wireless (refer to 'Wireless LAN
Connection' on page 22).
¾ To access the Network Connections Screen for configuring wireless
connection:
1. From the sidebar menu, click the Network Connections menu; the 'Network
Connections' screen appears.
Figure 9-1: Network Connections Screen Listing LAN Wireless Interface
The 'name' column denotes the wireless LAN connection as 'LAN Wireless 802.11g
Access Point'. The 'Status' column indicates whether the wireless connection is
enabled or disabled ("Connected" or "Disconnected").
2. Click the Edit icon in the 'Action' column corresponding to the 'LAN Wireless 802.11g
Access Point' network name; the 'LAN Wireless 802.11g Access Point Properties'
screen appears, displaying the contents of the General tab.
For a description of the tabs of the 'LAN Wireless 802.11g Access Point Properties' screen,
refer to the following:
General tab - refer to 'General Tab' on page 88
Setting
s tab - refer to 'Settings Tab' on page 88
Wireless tab
- refer to 'Wireless Tab' on page 89
Adv
anced tab - refer to 'Advanced Tab' on page 103
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9.1 General Tab
The General tab allows you to change the name of your wireless network and allows you
to enable or disable the wireless connection. In addition, this screen displays various
statistics such as download and upload rate, as well as other informative parameters such
as whether encryption is enabled or disabled. These parameters can be configured in the
rest of the screen's tabs.
Figure 9-2: 'LAN Wireless 802.11g Access Point Properties - General' Screen
¾ To activate the wireless connection:
Click the Enable button; the screen refreshes and the 'Status' field changes to
"Connected".
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9.2 Settings Tab
The Settings tab displays the connection's general parameters. It is recommended not to
change the default values unless you are familiar with the networking concepts they
represent. Since your MP-20x is configured to operate with the default values, no
parameter modification is necessary.
Figure 9-3: LAN Wireless 802.11g Access Point Properties - Settings Screen
Table 9-1: LAN Wireless Settings Tab Parameter Descriptions
Parameter Description
Schedule
You can configure scheduler rules to define time segments during which the
connection is active (refer to 'Scheduler Rules' on page 248). O
nce a
scheduler rule(s) is defined, the drop-down list displays available rules.
Network
Select whether the parameters you are configuring relate to a LAN/WAN/DMZ
connection.
Physical Address
The physical address of the network card used for your network. Some cards
allow you to change this address.
Clone My MAC
Address
Allows you to copy the current MAC address of your PC to the MAC address of
this device.
MTU
MTU is the Maximum Transmission Unit. It species the largest packet size
permitted for Internet transmission. By default, it is set to 'Automatic', whereby
the Telephone Adapter selects the best MTU for your Internet connection. In
case you change to manual, you can enter the largest packet size, you should
leave this value in the 1200 to 1500 range.
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9.3 Wireless Tab
The Wireless tab allows you define the basic wireless access point settings.
Figure 9-4: LAN Wireless 802.11g Access Point Properties - Wireless Screen
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Table 9-2: Wireless Tab Parameter Descriptions
Parameter Description
SSID Broadcast
Select this check box to enable the SSID's broadcast. SSID broadcast is used
to hide the name of the AP (SSID) from clients.
802.11 Mode
Select the wireless communication standard that is compatible with your
client's wireless card: 802.11g Only, 802.11b Only or 802.11b/g Mixed.
Channel
Select the appropriate channel to correspond with your network settings. All
devices in your wireless network must broadcast on different channels in order
to function correctly. The channels conform to the U.S.A. Regulatory Authority
FCC (Federal Communications Commission).
Network
Authentication
The WPA network authentication method is 'Open System Authentication',
meaning that a network key is not used for authentication. When using the
802.1X WEP or Non-802.1X WEP security protocols, this field changes to a
drop-down list, offering the 'Shared Key Authentication' method (which uses a
network key for authentication), or both methods combined.
MAC Filtering Mode
You can filter wireless users according to their MAC address, either allowing or
denying access. Choose the action to be performed by selecting it from the
drop-own list.
MAC Filtering Table
For a description on adding MAC filtering addresses to the 'MAC Filtering
Table', refer to 'MAC Filtering' on page 91.
Security
Configures your wireless security settings. Select the type of security protocol
in the drop-down list. The screen refreshes, presenting each protocol's
configuration respectively. For a detailed description on configuring the
different security protocols, refer to 'Wireless Security' on page 92.
Wireless QoS
(WMM)
Wi-Fi Multimedia (WMM) is a Wi-Fi Alliance certification based on the IEEE
802.11e draft standard. It provides basic Quality of Service (QoS) features to
IEEE 802.11 networks. For a detailed explanation on configuring WMM, refer
to 'Wireless QoS (WMM)'.
Transmission Rate,
Transmission
Power, CTS
Protection Mode,
Beacon Interval,
DTIM Interval,
Fragmentation
Threshold, RTS
Threshold
These are wireless transmission parameters. For a detailed explanation on
each of these parameters, refer to 'Transmission Properties' on page 97.
Virtual APS
You can set up multiple virtual wireless LAN's on MP-20x, limited only to the
number supported by your wireless card. Such virtual wireless LANs are
referred to as "Virtual APs" (virtual access points). For a detailed description on
configuring Virtual APS, refer to 'Virtual Access Points' on page 99.
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9.3.1 MAC Filtering
You can filter wireless users according to their MAC address, by either allowing or denying
access.
¾ To define MAC filtering:
1. In the Wireless tab's screen, from the 'MAC Filtering Mode' drop-down list, select
either 'Allow' or 'Deny'.
2. In the 'MAC Filtering Table', click New MAC Address; the 'MAC Filtering Settings'
screen appears.
Figure 9-5: MAC Filtering Settings Screen
3. In the 'MAC Address' field, enter the MAC address to be filtered.
4. Click OK; a MAC address list appears, upon which the selected filtering action
(allow/deny) will be performed.
Figure 9-6: MAC Address Added to MAC Filtering Table
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9.3.2 Wireless Security
¾ To define wireless security:
1. In the Wireless tab's screen, from the 'Security' drop-down list, select the type of
security protocol; the screen refreshes, presenting each protocol's configuration
respectively:
• None: this option disables security on your wireless connection.
• WPA: WPA is a data encryption method for 802.11 wireless LANs.
Figure 9-7: Configuring WPA Security
Configure the following fields:
a. Authentication Method: select the authentication method ('Pre-Shared Key'
and '802.1x') you would like to use.
b. Pre-Shared Key: this entry appears only if you selected this authentication
method. Enter your encryption key (using either an ASCII or a Hex value by
selecting the value type in the drop-down list provided.
c. Encryption Algorithm: select between 'TKIP' (Temporal Key Integrity
Protocol), 'AES' (Advanced Encryption Standard) or both ('TKIP and AES')
for the encryption algorithm.
d. Group Key Update Interval: select the check box, and then enter the time
interval in seconds for updating a group key.
e. Inter Client Privacy: select the check box to prevent communication
between the wireless network clients using the same access point. Clients
will not be able to view and access each other's shared directories.
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• WPA2: WPA2 is an enhanced version of WPA, and defines the 802.11i protocol.
Figure 9-8: Configuring WPA2 Security
a. Authentication Method: select the authentication method ('Pre-Shared Key'
and '802.1x') you would like to use.
b. Pre-Shared Key: this entry appears only if you had selected this
authentication method. Enter your encryption key in either an ASCII or a Hex
value (by selecting the value type in the drop-down list provided).
c. Pre Authentication: (only appears when selecting the 802.1x authentication
method) Select this option to enable MP-20x to accept RADIUS
authentication requests from computers connected to other access points.
This enables roaming from one wireless network to another.
d. PMK Cache Period: (only appears when selecting the 802.1x authentication
method) number of minutes before deletion (and renewal) of the Pairwise
Master Key used for authentication.
e. Encryption Algorithm: encryption algorithm used for WPA2 is the
Advanced Encryption Standard (AES).
f. Group Key Update Interval: Defines the time interval in seconds for
updating a group key.
g. Inter Client Privacy: select the check box to prevent communication
between the wireless network clients using the same access point. Clients
will not be able to view and access each other's shared directories.
• WPA and WPA2: WPA and WPA2 is a mixed data encryption method. For a
description of these fields, see WPA and WPA2 above.
• 802.1x WEP: data encryption method utilizing an automatically defined key for
wireless clients that use 802.1x for authentication and WEP for encryption.
Figure 9-9: Configuring 802.1x WEP Security
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a. Inter Client Privacy: select the check box to prevent communication
between the wireless network clients using the same access point. Clients
will not be able to view and access each other's shared directories.
b. RADIUS Server: configure the RADIUS Server parameters
9 Server IP: RADIUS server's IP address.
9 Server Port: RADIUS server's port.
9 Shared Secret: your shared secret.
• Non-802.1x WEP: data encryption method utilizing a statically defined key for
wireless clients that do not use 802.1x for authentication, but use WEP for
encryption. You may define up to four keys but use only one at a time.
Figure 9-10: Configuring Non-WEP Security
a. Inter Client Privacy: select the check box to prevent communication
between the wireless network clients using the same access point. Clients
will not be able to view and access each other's shared directories.
b. WEP Keys table:
9 Active: select the encryption key to be activated.
9 Encryption Key: enter the encryption key until the entire field is filled.
The key cannot be shorter than the field's length.
9 Entry Method: select the character type for the key: ASCII or HEX.
9 Key Length: select the key length in bits: 40 or 104 bits.
Note: The encryption key must be defined in the wireless Windows client as well.
This is done in the Connection Properties Configuration window (your
encryption key is entered in both the 'Network key' and 'Confirm network key'
fields, as shown in the figure below.
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Figure 9-11: Configuring Encryption Key in Windows Wireless Client
• Authentication Only: wireless clients attempting to connect to the wireless
connection will receive MP-20x's main login screen, along with a message.
Clients authenticate themselves and are then able to use the connection. MP-20x
keeps record of authenticated clients. To clear this list, click the Clean Mac List
button. Clients will have to re-authenticate themselves to use the wireless
connection.
Figure 9-12: Configuring Authentication Only Security
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9.3.3 Wireless QoS (WMM)
Wi-Fi Multimedia (WMM) is a Wi-Fi Alliance certification based on the IEEE 802.11e draft
standard. It provides basic Quality of Service (QoS) features to IEEE 802.11 networks.
WMM can be enabled only if your wireless card supports WMM.
Background, Best Effort, Video, and Voice are access categories for packet prioritization.
Upon enabling WMM, the highest priority is given to Voice packets, decreasing towards
Background packets which receive the lowest priority. In addition, you can control the
reliability of traffic flow.
By default, the 'Ack Policy' for each access category is set to 'Normal', meaning that an
Acknowledge packet is returned for every packet received. This provides a more reliable
transmission but increases traffic load, which decreases performance. You may choose to
cancel the acknowledgement by selecting 'No Ack' in the drop-down list corresponding to
each access category, thus changing the Ack policy. This can be useful for Voice, for
example, where speed of transmission is important and packet loss is tolerable to a certain
degree.
¾ To enable WMM:
1. In the Wireless tab's screen, under the section 'Wireless QoS (WMM)', select the
'Enabled' check box; the screen refreshes.
Figure 9-13: Wireless QoS (WMM)
2. For each category, select whether an Acknowledge packet is returned for every
packet received ('Normal') or no Acknowledge packet is returned ('No Ack').
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9.3.4 Transmission Properties
Use this section to define the wireless transmission settings.
¾ To configure the transmission properties:
1. In the Wireless tab's screen, under the section 'Wireless QoS (WMM)', select the
'Enabled' check box; the screen refreshes.
Figure 9-14: Transmission Properties
2. Configure the parameters according to the table below:
Table 9-3: Wireless Tab - Transmission Parameter Descriptions
Parameter Description
Transmission Rate
The transmission rate is set according to the speed of your wireless
connection. Select the transmission rate from the drop-down list or select 'Auto'
to have MP-20x automatically use the fastest possible data transmission rate.
Note that if your wireless connection is weak or unstable, it is best to select a
low transmission rate.
Transmit Power
The percentage of maximum transmission power.
CTS Protection
Mode
CTS Protection Mode boosts your MP-20x's ability to intercept 802.11g and
802.11b transmissions. Conversely, CTS Protection Mode decreases
performance. Leave this feature disabled unless you encounter severe
communication difficulties between MP-20x and 802.11g products. If enabling,
select 'Always'. Select 'Auto' to have MP-20x automatically decide whether or
not to use this feature.
Beacon Interval
A beacon is a packet broadcast by MP-20x to synchronize the wireless
network. The Beacon Interval value indicates how often the beacon is sent.
DTIM Interval
The Delivery Traffic Indication Message (DTIM) is a countdown value that
informs wireless clients of the next opportunity to receive multicast and
broadcast messages. This value ranges between 1 and 16384.
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Parameter Description
Fragmentation
Threshold
Packets that are larger than this threshold are fragmented into multiple
packets. Try to increase the fragmentation threshold if you encounter high
packet error rates. Do not set the threshold too low, since this can result in
reduced networking performance.
RTS Threshold
MP-20x sends Request to Send (RTS) packets to the wireless client to
negotiate the dispatching of data. The wireless client responds with a Clear to
Send (CTS) packet, signaling that transmission can commence. In case
packets are smaller than the preset threshold, the RTC/CTS mechanism is not
active. If you encounter inconsistent data flow, try a minor reduction of the RTS
threshold size.
9.3.5 Virtual Access Points
You can set up multiple virtual wireless LAN's on MP-20x, limited only to the number
supported by your wireless card. Such virtual wireless LANs are referred to as "Virtual APs"
(virtual access points). In the Wireless tab's screen, under the section 'Virtual APs' section,
MP-20x's physical wireless access point is displayed first, and on top of which virtual
connections may be created.
Figure 9-15: Virtual APs Table
¾ To create a virtual connection:
1. In the Wireless tab's screen, under the section 'Virtual APs' section, click the New
Virtual AP link; a warning message appears.
Figure 9-16: Virtual AP Warning
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2. Click OK; the screen refreshes, displaying the new virtual connection.
Figure 9-17: New Virtual AP
The new virtual connection is also added to the list of connections in the 'Network
Connections' screen (Network Connections menu), and is configurable like any other
connection (by clicking its corresponding Edit button).
A useful implementation of Virtual AP's is to define a virtual connection with a different
SSID value to dedicate it for guest access. Through this connection, guests are able to
access the WAN, but they are denied access to other wireless LANs provided by MP-20x.
To do so, perform the following:
1. Set a firewall rule that blocks access to all other MP-20x LANs (Security menu >
Advanced Filtering tab).
Figure 9-18: Firewall Blocking Access to All Other LANs
2. In the virtual connection's 'LAN Wireless 802.11g Access Point - Virtual AP Properties'
screen:
a. In the 'Internet Protocol' section under the 'Settings' sub-tab, enter an IP address
for the connection by selecting 'Use the Following IP Address'.
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