Avaya IP Telephony BCM User Manual

BCM Rls 6.0

IP Telephony

Task Based Guide

IP Telephony

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Table of Contents

IP Telephony...................................................................... 7

Overview .......................................................................................... 7

IP Telephones and VoIP Trunks ...................................................... 8

IP Telephones .................................................................................................... 8

VoIP Trunks ....................................................................................................... 8

Supporting Information ...................................................................................... 9

Key IP Telephony Concepts ............................................................................ 11

Remote Working Capability ............................................................................. 14

Required Information ..................................................................... 15

Flow Charts .................................................................................... 16

IP Telephone Configuration ............................................................................. 16

VoIP Gateway Configuration ........................................................................... 17

General Configuration .................................................... 18

Keycodes ....................................................................................... 18

Published IP Interface .................................................................... 19

Media Gateways ............................................................................ 22

Quality of Service (QoS) Settings .................................................. 22

DSCP Marking ................................................................................................. 23

DSCP Mapping ................................................................................................ 24

IP Telephones .................................................................. 26

DHCP Configuration ...................................................................... 26

DHCP Server - IP Terminal Options ................................................................ 26

Configuring the DHCP Address Ranges ......................................................... 29

Preparing Your System for IP Telephone Registration .................. 31

Registering the IP Phones to the System ...................................... 33

COLOR*SET .................................................................................................... 34

Configuring Telephone Settings ...................................................................... 34

IP Telephone Configuration Parameters – (On Phone‟s Display) ................... 38

Troubleshooting IP Telephones ....................................................................... 40

Deregistering IP Telephones ........................................................................... 41

Remote Worker Solution ................................ ................................ 43

Example Scenario and Configuration Overview .............................................. 43

BCM Configuration........................................................................................... 44

Router Configuration ........................................................................................ 49

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Configuring the Remote IP Phone ................................................................... 49

Remote Worker Security Considerations ........................................................ 49

2050 IP Softphone ......................................................................... 49

Licensing .......................................................................................................... 50

Minimum PC Requirements ............................................................................. 51

Supported Operating Systems ......................................................................... 51

USB Audio Kit .................................................................................................. 52

Installing the 2050 IP Softphone ...................................................................... 52

Configuring the 2050 IP Softphone.................................................................. 59

Licensing the i2050 Using the BCM HTTP Server Method ............................. 63

Registering the 2050 IP Softphone .................................................................. 67

Using the 2050 IP Softphone ........................................................................... 70

IP Terminal Features ..................................................................... 76

Feature List ...................................................................................................... 76

Feature List IP Set Usage ................................................................................ 78

Key Labels ....................................................................................................... 78

Hot Desking ..................................................................................................... 79

Keeping Call Forward Settings when IP Phones are Disconnected ................ 81

VoIP Gateways ................................................................ 83

Configuring the Local Gateway Settings ........................................ 83

IP Trunks .......................................................................................................... 84

H.323 Settings ................................................................................................. 85

SIP Settings ..................................................................................................... 88

H323 & SIP Media Parameters ...................................................... 89

H323 Media Parameters .................................................................................. 90

SIP Media Parameters ..................................................................................... 92

Private SIP Specific Configuration ................................................. 94

SIP Proxy ......................................................................................................... 94

SIP URI Map .................................................................................................... 96

SIP Authentication ........................................................................................... 97

SIP Trunk Settings ......................................................................................... 100

Public SIP Trunk Configuration .................................................... 102

Importing an ITSP Template .......................................................................... 102

Creating an ITSP Account ............................................................................. 106

Checking the Public IP Address .................................................................... 117

Configuring a SIP Public Route ..................................................................... 121

Remote Gateways (Routing Table) .............................................. 123

H.323 Routing Tables .................................................................................... 123

SIP Routing Tables ........................................................................................ 126

VoIP Trunk Call Routing Summary ................................................................ 129

Tandem Switching Example ........................................................ 130

Set-up Procedures for BCM with PSTN Connection ..................................... 130

Set-up Procedures for BCM with no PSTN Connection ................................ 134

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Additional Information .................................................. 139

1100 Series VPN Client Termination ........................................... 139

Supported Phones ......................................................................................... 139

Supported Main Office Routers ..................................................................... 139

VPN IP Phone Licensing ............................................................................... 140

VPN IP Phone Provisioning ........................................................................... 140

VPN Router Configuration ............................................................................. 140

Manually Configuring the IP Phone with the VPN Settings ........................... 141

Avaya Documentation Links ........................................ 145

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Overview

IP Telephony is the technology of transmitting voice conversations over a data network infrastructure using IP (Internet Protocol). IP Telephony is the ability to make a phone call using an IP based device, optionally via gateways such as the Business Communications Manager or using Internet Telephony Service Providers (ITSPs). This convergence of voice, video, and data enhances our ability to collaborate with tools such as video conferencing and other data related facilities.

Business Communications Manager (BCM) with Voice over IP (VoIP) provides several business critical advantages:

 Cost Savings. IP networks can be significantly less expensive to

operate and maintain than traditional networks. The simplified network infrastructure of an Internet Telephony solution cuts costs by connecting IP telephones over your LAN and eliminates the need for dual cabling. IP Telephony can also provide “internal” dialling capability on site-to-site calls via global four-digit dialling plans.

 Portability and flexibility. Employees can be more productive

because they are no longer confined by geographic location. IP telephones work anywhere on the network, even over a remote connection. Network deployments and reconfigurations are simplified, and service can be extended to remote sites and home offices over cost-effective IP links.

 Simplicity and consistency. Customers can centrally manage the IP

Telephony infrastructure from a central point via the Element Manager application. The ability to network existing PBXs using IP can bring new benefits to a business. For example, the ability to consolidate voicemail onto a single system, or to fewer systems, making it easier for voice mail users to network.

 Compatibility. IP Telephony is supported over a wide variety of

transport technologies. A user can gain access to just about any business system through a Digital Line, a LAN, frame relay, asynchronous transfer mode, SONET or wireless connection.

 Scalability. A future-proof, flexible, and safe solution, combined with

high reliability, allows a company to focus on customer needs, not network problems.

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Note: All IP Clients require licence seats enabling on the BCM to allow registration and functionality. The 2050 IP Softphone requires additional per seat licensing, as does the 1100 series VPN feature. The Remote Worker Solution (NAT traversal) also requires licensing, on a system-wide rather than per seat basis.

IP Telephones and VoIP Trunks

This guide describes two similar applications for IP telephony on the BCM system: IP telephones and VoIP trunks. These applications can be used separately or together as a network voice/data solution.

IP Telephones

IP telephones offer the functionality of regular telephones, but do not require a hardwire connection to the BCM. Instead, they must be plugged into an IP network that is connected to the LAN or WAN card (BCM50(b)e only) on the BCM.

Calls made from IP telephones through the BCM can pass over VoIP trunks or across a Public Switched Telephone Network (PSTN).

Avaya provides a range of IP telephones. The „i-series‟ telephones are hardwired to the system, in the case of the i2001, i2002, i2004, i2007 as well as the newer 1110, 1120E, 1140E, 1210, 1220, 1230 and the i2033 IP conference phone, or are accessed through your desktop or laptop computer as in the case of the IP Softphone 2050.

VoIP Trunks

VoIP trunks (Lines) allow voice signals to travel across IP networks. A gateway within the BCM converts the voice signal into IP packets, which are then transmitted through the IP network. The device at the other end reassembles the packets into a voice signal. NetMeeting is one of the H.323 protocol trunk devices that the BCM system supports.

H.323 is a standard for packet based multimedia communications systems. H.323 is widely used as the standard for IP telephony and allows for the voice packets to traverse an IP network. It was designed for multimedia communication over IP networks, including audio, video, and data conferencing. The most widely deployed use of H.323 is "Voice over IP" followed by "Videoconferencing".

SIP Session Initiation Protocol is text based application-layer control (signaling) protocol for creating, modifying, and terminating sessions with one or more participants. It can be used to create two or multiparty VoIP telephone calls. Name Translation and User Location is utilised where SIP translates an address to a name and thus reaches the called party at any location.

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Note: VoIP trunks are enabled via keycodes. The number of licence seats applied determines the maximum number of simultaneous calls via VoIP trunks.

Supporting Information

The following sections contain information the might be useful when considering network design and integration of BCM VoIP functionality into the network.

SIP Trunk Authentication

Ensures that only gateways with valid credentials can place calls to the BCM and that BCM can provide valid credentials on outgoing calls when challenges take place.

DNS (Domain Name Service)

DNS can be used to locate SIP servers. This means that customers do not need to know the IP addresses of remote servers and can use domain name entries instead.

SIP Proxy Failover

Enables use of multiple SIP Proxies without relying on DNS query method with multiple entries.

SIP REFER

Standards based method for handling incoming SIP REFER messages to support Call Transfer requests in a SIP network environment.

G.711 Fax Support

Option to use G.711 when placing calls from fax machines.

IP Network

The network administrator should be able to advise you about the network setup and how the BCM fits into the network.

WAN

A Wide Area Network (WAN) is a communications network that covers a wide geographic area, such as a state or country. If you want to deploy IP telephones that will be connected to a LAN outside of the LAN that the BCM is installed on, you must ensure the BCM has access to a network device that has a WAN connection. This includes ensuring that you obtain IP addresses and routing information that allows the remote telephones to find the BCM, and vice versa.

LAN

A Local Area Network (LAN) is a communications network that serves users within a confined geographical area. For BCM, a LAN is any IP network

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connected to a LAN Interface on the BCM system. Often, the LAN can include a router that forms a connection to the Internet.

Public Switched Telephone Network

The PSTN can play an important role in IP telephony communications. In many installations, the PSTN forms a fallback route. If a call across a VoIP trunk does not have adequate voice quality, the call can be routed across the PSTN instead, either on public lines or on a dedicated ISDN connection between the two systems. The BCM also serves as a gateway to the PSTN for all voice traffic on the system.

Gatekeeper

A gatekeeper tracks IP addresses of specified devices, and provides authorisation for making and accepting calls for these devices. A gatekeeper is not required for the BCM system, but can be useful on networks with a large number of devices.

A gatekeeper controls all H.323 clients (endpoints like MS Netmeeting) in its zone. Its primary function is to address translation between alias addresses and IP addresses. This way you can call "Fred" instead of knowing which IP address he currently works on. VoIP gateways can register at the gatekeeper and the gatekeeper finds the right gateway to use to call a specific number.

For example in the diagram below digital telephone A wants to call IP telephone B, which is attached to BCM B, over a network that is under the control of a gatekeeper. Digital telephone A sends a request to the gatekeeper. The gatekeeper provides Digital telephone A with the information it needs to contact BCM B over the network. BCM B then passes the call to IP telephone B.

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Below is a diagram showing an example of a VoIP Network.

IP Telephony

Key IP Telephony Concepts

In traditional telephony, the voice path between two telephones is circuit switched. This means that the digital connection between the two telephones is dedicated to the call. The voice quality is usually excellent, since there is no other signal to interfere.

In IP telephony, voice quality between IP telephones can vary significantly from call to call and time of day. When two IP telephones are on a call, each IP telephone encodes the speech at the handset microphone into small data packets called frames. The system sends the frames across the IP network to the other telephone, where the frames are decoded and played at the handset receiver. If some of the frames get lost while in transit, or are delayed too long, the receiving telephone experiences poor voice quality.

Codecs

The algorithm used to compress and decompress voice is embedded in a software entity called a codec (COde-DECode). Two popular Codecs are G.711 and G.729. The G.711 Codec samples voice at 64 kilobits per second (kbps) while G.729 samples at a far lower rate of 8 kbps. Voice quality is

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better when using a G.711 CODEC, but more network bandwidth is used to exchange the voice frames between the telephones.

If you experience poor voice quality, and suspect it is due to heavy network traffic, you can get better voice quality by configuring the IP telephone to use a G.729 CODEC.

The BCM supports these codecs:

 G.729  G.723  G.729 with VAD (Voice Activity Detection - the transmission of "silent

packets" over the network)

 G.723 with VAD  G.711-uLaw  G.711-aLaw

BCM allows for CODEC renegotiation. This means that two sets and/or trunks using dissimilar CODEC settings, when initiating the VoIP call, would negotiate and decide which CODEC to use. In earlier BCM software levels, differing CODECS would have meant that the call would be dropped.

Jitter Buffer

Voice frames are transmitted at a fixed rate, because the time interval between frames is constant. If the frames arrive at the other end at the same rate, voice quality is perceived as good. In many cases, however, some frames can arrive slightly faster or slower than the other frames. This is called jitter, and degrades the perceived voice quality. To minimize this problem, configure the IP telephone with a jitter buffer for arriving frames.

This is how the jitter buffer works - Assume a jitter buffer setting of five frames:

 The IP telephone firmware places the first five arriving frames in the

jitter buffer.

 When frame six arrives, the IP telephone firmware places it in the

buffer, and sends frame one to the handset speaker.

 When frame seven arrives, the IP telephone buffers it, and sends frame

two to the handset speaker.

 The net effect of using a jitter buffer is that the arriving packets are

delayed slightly in order to ensure a constant rate of arriving frames at the handset speaker.

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The below diagram shows a Jitter Buffer example assuming a jitter buffer setting of five frames:

Possible jitter buffer settings and corresponding voice packet latency (delay) for the BCM system IP telephones are:

 None  Small (G.711/G.729: 0.05 seconds)  Medium (G.711/G.729: 0.09 seconds)  Large (G.711/G.729: 0.15 seconds)

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QoS Routing

The process of prioritizing data frames is referred to as Quality of Service (QoS) routing.

The BCM system supports QoS routing, when it is integrated with other Avaya routing solutions. The BCM system can also be configured to monitor QoS so that the system reverts to a circuit-switched line if a suitable QoS cannot be guaranteed.

VoIP packets can also be “marked” using DSCP, with the aim of prioritising

these packets through the network.

Remote Working Capability

The latest release of BCM offers the option of being able to use an IP Telephone in remote locations, as it were a phone on the local system. The Remote Worker solution only requires standard routers and networking capability to perform this function. If necessary, the IP telephone can be moved to various locations as required, as long as there is network access to the BCM.

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A typical example of the Remote Worker solution would be a home worker who wishes to connect an IP telephone to the main office BCM, using their standard home router and the internet. The office BCM would be connected to the internet via a router which has a static public IP address, and forwards the IP telephone‟s data/voice traffic to the BCM (and vice-versa).

Alternatively, if extra security is required for the data/voice traffic, a VPN connection can be initiated via the 1120 and 1140 IP telephones. This requires enhanced IP phone configuration, and a VPN router at the main office hosting the BCM.

Required Information

Before configuring IP Telephony, the following information will need to be confirmed:

 Which interface will be used for the Published IP address?  Is there a Gatekeeper connected to the BCM, if so, what is the IP

address of the Gatekeeper and the Alias name for the BCM?

 If there is no Gatekeeper, what are the IP addresses of the remote

Gateways and what are the telephony destination digits required to dial those systems?

 What password will be used for IP Phone registration?  Are there any routers that should be referenced as part of the VoIP

configuration? These may be used to provide WAN access for example.

 If using the Remote Worker or 1100 series VPN solutions, what is the

public IP address of the router connecting the BCM to the Internet/WAN network.

 What telephony configuration is required for IP Telephony?  Will DHCP be required for the IP Phones, and if so, will the BCM be set

up to provide IP Addresses to the phones?

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Will the BCM be used to issue IP Addresses to the IP phones?

Ensure that the required keycodes are applied to the BCM: refer to the Keycodes section of this guide.

Set the BCM‟s IP Address that the IP phones will

Refer to the DHCP Configuration section of this guide.

Will the 2050 IP Softphone be used?

Refer to the 2050 IP Softphone section of this guide.

IP Phones have been configured for use.

Yes

Set the BCM up to allow IP phones to register:: refer to the Preparing Your system for IP Telephone

Registration section of this guide.

Flow Charts

Use the following flow charts to determine which sections of this guide to use.

IP Telephone Configuration

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VoIP Gateway Configuration

Will SIP be used over the VoIP trunks?

Determine how incoming and outgoing calls will be handled: refer to the Configuring the Local Gateway Settings section of this guide.

Check the H323 and/or SIP Media Parameters: refer to the H323 & SIP Media Parameters section of this guide.

Refer to the Private SIP Specific Configuration section of this guide.

If not using a Gatekeeper on the network, manually configure the Remote Gateways: refer to the Remote Gateways (Routing Table) section of this guide.

Yes

Will the SIP trunks be private to another system, or public to an ITSP?

Refer to the Public SIP Trunk Configuration section of this guide.

Private

Public to ITSP

IP Telephony

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General Configuration

The BCM supports the following IP telephony protocols: UNISTIM, H.323 and SIP.

 The IP telephones use UNISTIM.  The Symbol NetVision and NetVision Data telephones use H.323+.  VoIP Trunks can use either H.323 or SIP (defined on a per gateway

basis)

The applications that control these protocols on the BCM provide an invisible interface between the IP telephones and the digital voice processing controls on the BCM.

Keycodes

The first part of configuration for IP Telephony is ensuring that the required keycodes have been purchased and are entered.

1. In Element Manager, select the Configuration tab and then open the System folder. Select the Keycodes link and the keycodes that have been entered will be displayed.

2. Three keycode types are available, depending on your requirements:  VoIP (H.323) or SIP GW Trunks: two trunk protocols for networking

between compatible telephone systems. The number of trunk licence seats enables determines the maximum number of VoIP calls that can be placed over VoIP trunks. SIP GW trunks will be required to connect to ITSPs.

 IP Clients: The number of IP Client licence seats determines the

number of IP Phones and Software IP Phones that can be registered against the BCM.

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Note: The exception to this rule is when registering telephones to be used Remote Worker sets. Please refer to the Remote Worker Solution section of this guide for instructions on S1/S2 assignment for this feature.

Note: The Published IP Address is the address that LAN CTE should also register against. For further information, refer to the LAN CTE Guide.

 Remote Worker: A single keycode unlocks the Remote Worker

solution

Published IP Interface

The Published IP Interface is the IP Address that IP Telephones need to register against as well as the address that VoIP gateways need to be “pointed” to. You have the choice of selecting the Customer LAN (refer to the Configuring the LAN IP Address section of the System Start Up Guide) or any VLAN IP Addresses (refer to the VLANs Guide) that are configured on the BCM in the IP Subsystem section of Element Manager.

The Published IP Address must be set as the S1 IP (or S2 IP if the BCM will be used as a “backup” registration BCM) when configuring IP phones for registration.

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Use the following procedure to check or set the Published IP Address.

1. From the Configuration tab, open the System folder and select IP Subsystem. Click on the General Settings tab.

2. If checking the existing Published IP Address for IP phone registration purposes, view the read-only field.

3. If changing the setting, from the Published IP Interface drop-down list, select the Customer LAN or any of the VLANs configured on the BCM.

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4. A warning box will appear stating that all Voice over IP applications will be restarted. This may result in VoIP calls being dropped. Click OK to continue.

5. If changed, the new setting will be displayed,

6. Changing the Published IP Interface setting also has the effect of changing the S1 Primary Terminal Proxy Server IP Addresses (S1 & S2) in the DHCP Server IP Terminal DHCP Options screen (refer to the DHCP Server - IP Terminal Options section of this guide for further information).

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Attribute

Value

Description

Echo cancellation

<drop-down menu> Enabled w/NLP Enabled Disabled

Enable or disable echo cancellation for your system. Default: Enabled w/NLP (check with your internet system administrator before changing this) Echo Cancellation selects what type of echo cancellation is used on calls that go through a Media Gateway. NLP refers to Non-Linear Processing.

T.38 UDP redundancy

If T.38 fax is enabled on the system, this setting defines how many times the message is resent during a transmission, to avoid errors caused by lost T.38 messages.

Note: If any network hardware handling network traffic does not support DSCP, the packets will not be prioritised by that hardware, and will be treated on an equal basis to non–prioritised packets.

Media Gateways

Certain types of IP communications pass through Media Gateways on the BCM. You can control the performance of these communications by adjusting the parameters for echo-cancellation and UDP Redundancy.

The Media Gateways panel allows you to set basic parameters that control IP telephony.

1. Open the Resources folder and highlight Media Gateways. The Media Gateways screen will be displayed on the right. Configure the Parameters as described in the following table.

Media Gateways Settings

Quality of Service (QoS) Settings

The BCM can be configured to mark voice related data packets using the Differentiated Services Code Point (DSCP) feature, so that they have priority over other packets on the network. Prioritised packets pass through network hardware supporting the DSCP feature, ahead of lower priority packets. This has obvious benefits for real time applications such as Voice over IP.

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Note: Only configure BCM QoS if you have a plan of what types of packets are prioritised on the network, and the levels (class of service) of priority for those packet types.

The following types of data packets can be prioritised:

 VoIP Signalling (SIP, H.323, and Unistim)  Voice Media  T.38 Fax Media (SIP or H.323)

DSCP Marking

Use the following procedure to set the QoS values for VoIP Signalling, Voice Media, and Fax Media packets.

1. In Element Manager, select the Configuration tab. Open the Data Services folder, and click on QoS.

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Note: Avaya Automatic QoS should only be used if there are other devices on the network that support this feature.

2. In the DSCP Marking tab, select either to use Avaya Automatic QoS settings or select the values for each of VoIP Signalling, Voice Media, or Fax Media.

3. A value of CUSTOM can also be selected from the drop-down lists, which will enable a customisable ToS (Terms of Service value) to be entered.

DSCP Mapping

In this area DSCP values are assigned to various service classes. The service classes determine the priority level of the DSCP value.

The available Service Classes are (in order of priority):

 Critical  Network  Premium  Platinum  Gold  Silver  Bronze  Standard

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Therefore, a packet carrying a DSCP value associated with the Critical class will have the highest priority (assuming the default VLAN P Bit Mapping settings are not changed).

1. Click on the DSCP Mapping tab. If you want to assign a different service class to a DSCP value, double-click in the corresponding Avaya Service Code field and select the class from the drop-down list.

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IP Telephony

IP Telephones

IP telephones offer the functionality of regular telephones, but do not require a hardwire connection to the BCM. Instead, they must be plugged into an IP network which is connected to the BCM.

Calls made from IP telephones through the BCM can pass over VoIP (H.323 or SIP) trunks or across Public Switched Telephone Network (PSTN) lines.

Avaya provides two types of IP telephones. The IP telephones are wired to an IP network using Ethernet in the case of the IP telephones, or are accessed through your desktop or laptop computer, as in the case of the 2050 IP Softphone.

IP telephones can be configured to the network by the end user or by the administrator. If the end user is configuring the telephone, the administrator must provide the user with the required parameters.

DHCP Configuration

Refer to the following sections if the BCM will be used as the DHCP server for the IP phones.

DHCP Server - IP Terminal Options

If the BCM is configured to pass on DHCP details to IP phones using either the “Enabled – IP Phones Only” or “Enabled – All Devices” options in DHCP Server General Settings, then the BCM should be configured to supply the Primary (S1) and Secondary (S2) Terminal Proxy Server IP Addresses that the IP Phones should register against.

If the BCM will not be passing on DHCP information to IP Phones, then the IP Terminal DHCP Options do not require configuring.

Again, if you have configured the Published IP Interface in the Published IP Interface section, the S1 and S2 will be already set to the Published IP Address. However, you may wish to check these settings.

Use the following procedure to check or change the IP Terminal DHCP Options.

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IP Telephony

1. From Configuration tab open the Data Services folder and select DHCP Server. Click on the General Settings tab. Check to see if the BCM is configured to provide DHCP information to IP Phones.

2. If either Enabled – IP Phones Only or Enabled – All Devices is selected, then continue with configuring the IP Terminal DHCP Options.

3. Click on the IP Terminal Options tab.

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IP Telephony

Attribute

Value

Description

Primary Terminal Proxy Server (S1)

IP Address

The IP address of the Proxy Server for IP phones. This should be set to the BCMs Published IP Address.

Port

<drop-down list>

Select the appropriate port: BCM SRG Meridian 1/Succession 1000 Centrex/SL-100 Other

Port number

The port number on the terminal through which IP phones connect.

Action

The initial action code for the IP telephone. Retry count

The delay before an IP phone retries connecting to the proxy server.

Secondary Terminal Proxy Server (S2)

IP address

The IP address of the Proxy Server for IP phones. This should be set to the BCMs Published IP Address, or a backup BCM to register against.

Port

<drop-down list>

Select the appropriate port: BCM SRG Meridian 1/Succession 1000 Centrex/SL-100 Other

Port number

The port number on the terminal through which IP phones connect.

Action

The initial action code for the IP telephone Retry count

The delay before an IP phone retries connecting to the proxy server.

VLAN

VLAN identifiers (commadelimited)

Specify the Virtual LAN (VLAN) ID numbers that are given to the IP telephones. If you want DHCP to automatically assign VLAN IDs to the IP telephones, enter the VLAN IDs in the following format: VLAN-A:id1, id3,…,idn. Where: VLAN-A – is an identifier that tells the IP telephone that this message is a VLAN discovery message. Id1, id2,…idn – are the VLAN ID numbers that DHCP can assign to the IP telephones. You can have up to 4 (BCM50) or 8 (BCM450) VLAN ID numbers listed. The VLAN ID numbers must be a number from 1 to 4094. For example, if you wanted to use VLAN IDs 1100, 1200, 1300 and 1400, you would enter the following string in this box: VLAN-A:1100, 1200, 1300, 1400. If you do not want DHCP to automatically assign VLAN IDs to the telephones, enter VLAN-A:none, in this text box. Note1: The Avaya IP Terminal VLAN ID string, must be terminated with a period (.). Note2: If you do not know the VLAN ID, contact your network administrator. Note3: For information about how to setup a VLAN, refer to the user

4. Ensure that the IP address is set correctly for the Primary and Secondary Terminal Proxy Servers. Again, these addresses will be used during the IP Phone registration process. Also, ensure that the Port is set to BCM. This will automatically set the Port number field to

7000.

5. Configure all other fields as required.

IP Terminal DHCP Options

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Attribute

Value

Description

documentation that came with your VLAN compatible switch, as well as the VLAN Guide..

Avaya WLAN Handset Settings

TFTP Server

IP Address

Enter the IP Address of the TFTP server that is used for providing firmware to the WLAN handsets and the 2245 IP Telephony Manager

WLAN IP Telephony Manager 2245

IP Address

Enter the IP Address WLAN IP Telephony Manager 2245

Note: Consult with the network administrator to determine a suitable range of addresses, co-ordinating with the existing network design. For example, it may be necessary to set up an Address Range for VLANs that host the IP telephones. For more information on configuring VLANs, please refer to the

VLANs Guide.

Configuring the DHCP Address Ranges

If the BCM is configured to pass on DHCP information to IP Phones, you should configure a suitable range of addresses to assign to the IP Phones.

1. In the Configuration panel, open the Data Services folder and select DHCP Server.

2. Click on the Address Ranges tab.

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IP Telephony

3. If there aren‟t any Address Ranges configured, click on the Add button.

4. Enter the start IP address in the From IP Address field. Enter the end IP address of the range in the To IP address field. In the Default Gateway field, enter the IP Address of the network default gateway. This may be the BCM S1 address in some situations. Click OK to submit the settings.

5. The new address range will be displayed.

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