Net2Phone MAX T1, MAX E1 User Manual

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User

Guide

MAX T1/E1

VoIP Gateway

Version 1.0

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THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR NET2PHONE REPRESENTATIVE FOR A COPY. The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense. The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not installed in accordance with Net2Phone's installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. Modifying the equipment without Net2Phone's written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense. You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Net2Phone equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:

· Turn the television or radio antenna until the interference stops.

· Move the equipment to one side or the other of the television or radio.

· Move the equipment farther away from the television or radio.

· Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.) Modifications to this product not authorized by Net2Phone could void the FCC approval and negate your authority to operate the product. NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED "AS IS" WITH ALL FAULTS. NET2PHONE AND THE ABOVENAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE. IN NO EVENT SHALL NET2PHONE OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF NET2PHONE OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Net2Phone MAX, Net2Phone, the NET2PHONE logo and the Net2Phone logo are registered trademarks of Net2Phone in the U.S. and certain other countries. All other trademarks mentioned in this document are the property of their respective owners.

Net2Phone MAX User Guide

Printed in Korea.

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Contents

1. About This Guide...............................................................................................................................1

2. Setting Up IP Address.......................................................................................................................2

2.1. Connecting Console to Net2Phone MAX......................................................................2

2.2. Setting up the IP address of your Net2Phone MAX with console.............................2

3. Logging Into Net2Phone MAX.........................................................................................................4

4. Remote Access IVR Configuration .................................................................................................7

5. Max-to-Max IVR Configuration........................................................................................................9

6. Network and Voice Configuration..................................................................................................11

7. Account Configuration ....................................................................................................................13

8. Routing Table Configuration...........................................................................................................14

9. PBX Configuration...........................................................................................................................16

10. System Information and Commands....................................................................................19

11. System Software Upgrade.....................................................................................................24

11.1. Download Procedure......................................................................................................25

11.2. Upload Procedure...........................................................................................................26

12. T1/E1 Configuration Guide....................................................................................................30

12.1. Overview of Digital Trunk Interface..............................................................................30

12.2. Timing Clock mode Setup .............................................................................................30

12.3. Digital Trunk Setup.........................................................................................................32

12.4. Configuration Setting......................................................................................................42

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User Guide About This Guide

1. About This Guide

This guide contains instructions for configuring your Net2Phone MAX Internet telephony gateway system using a web browser. (Internet Explorer 4.0 and up recommended)

This guide also contains instructions for setting up the IP address of your Net2Phone MAX when DHCP service is not available.

The organization of this guide is as follows:

Section 1. About This Guide Section 2. Setting Up IP Address Section 3. Logging Into Net2Phone MAX Section 4. Remote Access IVR Configuration Section 5. Max-to-Max IVR Configuration Section 6. Network and Voice Configuration Section 7. Account Configuration Section 8. Routing Table Configuration Section 9. PBX Configuration Section 10. System Information and Commands Section 11. System Software Upgrade Section 12. T1/E1 Configuration Guide & Example

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User Guide Setting Up IP Address

2. Setting Up IP Address

If your network has a DHCP(Dynamic Host Configuration Protocol) server, then there is no need for manual IP address setting. The Net2Phone MAX system automatically configures IP related parameter settings itself using the DHCP protocol.

The IP related parameter settings are displayed on console when system boots up. For connecting console to Net2Phone MAX, refer to section 2.1.

If your network does not have a DHCP server, then you can manually configure IP address settings through the console port. (Refer to section 2.2)

2.1. Connecting Console to Net2Phone MAX

① Prepare a serial communication cable. (D-sub 9-pin, male-to-female, straight-through

connection)

② Connect the cable from a computer to the Net2Phone MAX. ③ Start HyperTerminal (in windows95/98/NT)or equivalent terminal emulator application

program.

④ Set serial communication parameters as following table

Baud rate 19200 Parity None Character size 8 Stop Bit 1 Flow Control None

⑤ Execute disconnect command and then execute connect command again. ⑥ Power on the Net2Phone MAX, then wait while the booting messages of Net2Phone MAX

are displayed.

⑦ If login prompt is displayed, login by using one of the following user ID’s.

user ID Password [factory default] root n2p manager n2p sysadm n2p

⑧ Net2Phone MAX supports only 3 management users. You can change each user’s

password, but you cannot add or delete new user for management.

2.2. Setting up the IP address of your Net2Phone MAX with console

This section describes changing the IP related parameters for Net2Phone MAX.

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User Guide Setting Up IP Address

IP address related parameters used in Net2Phone MAX are IP address of Net2Phone MAX, subnet mask of Net2Phone MAX, and IP address of default gateway. Prepare these values before starting configuration.

① Make a console connection from your computer to Net2Phone MAX (refer to section 2.1) ② After login to Net2Phone MAX, change directory to “/config/ip” (just type “/config/ip” at

prompt)

③ Change IP address, subnet mask, and default gateway settings using “change” command.

(type “change”, then interactive menu will appear)

④ Reset Net2Phone MAX to reflect changes to the Net2Phone MAX. This is done by issuing

“/system/reset” command or just power-off and after 10 seconds later, power-on.

⑤ Using “ping” command from another computer, confirm the correct IP related parameters

are configured to Net2Phone MAX.

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User Guide Logging Into Net2Phone MAX

3. Logging Into Net2Phone MAX

After obtaining the IP address of your Net2Phone MAX system, you can use a web browser to configure the Net2Phone MAX. First, you must log into the Net2Phone MAX by following steps below.

Open a new browser window and enter the IP address in the http address box.

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User Guide Logging Into Net2Phone MAX

When the intro page is displayed, click the “Open the door” area.

When the network password dialog box appears, enter username and password. {The default username is root, and the default password is n2p}

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User Guide Logging Into Net2Phone MAX

A site map will be displayed. You are now logged in.

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User Guide Remote Access IVR Configuration

4. Remote Access IVR Configuration

Remote access IVR (Interactive Voice Response) configuration table can be accessed by clicking “Remote IVR Config” link.

This page shows remote access IVR configurations of the Net2Phone MAX system.

The remote access IVR Configuration table displays current IVR settings for remote dial-in connection. User can change these settings for controlling unauthorized access to Net2Phone MAX system.

There are 6 access modes which are :

A. IVR Off : When IVR Off is selected for a port, callers to the port get an immediate

VoIP dial tone and can make VoIP calls without restriction.

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User Guide Remote Access IVR Configuration

B. Play Welcome Only : When this option is selected, callers to the port hear a welcome

message, “Welcome to Net2Phone. Please enter the number you wish to call.” Callers can then make VoIP calls without restriction.

C. Request Password Only : This option prevents unauthorized access to the T1/E1 on

which it is set. Callers are asked to enter a password through the telephone keypad before access to VoIP calling is permitted. Callers can then make VoIP calls without restriction. To configure this option, you must create a password (in the port’s Password column) which may consist of up to 5 (numeric only) characters.

D. Request Account and PIN : This feature requires the caller to enter a Net2Phone

account number and PIN before VoIP calling is enabled. If the caller then incurs charges while using the Net2Phone MAX, they will accrue to the caller’s account.

E. Request Password Account and PIN : This option combines the two functions

described above.

F. Use Forwarding Number : Select this IVR option for a port if you wish to have

incoming calls to that port forwarded to a specified number automatically, without notice to the caller. Any PSTN telephone number, or a Net2Phone account number preceded by *72, may be entered in the Forwarding Number column. If a PSTN number is entered, it must include any required preliminary digits, such as a 1 for longdistance calling.

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User Guide Max-to-Max IVR Configuration

5. Max-to-Max IVR Configuration

Max-to-Max IVR (Interactive Voice Response) configuration table can be accessed by clicking “Max-to-Max IVR Config” link.

This figure shows the Max-to-Max IVR Configuration table. Max-to-Max IVR Configuration table displays current IVR settings for Max-to-Max connection. User can change these settings for controlling unauthorized access to Net2Phone MAX system.

There are 5 access modes which are :

A. IVR Off : When IVR Off is selected for a port, callers to the port get an immediate

VoIP dial tone and can make VoIP calls without restriction.

B. Play Welcome Only : When this option is selected, callers to the port hear a welcome

message, “Welcome to Net2Phone. Please enter the number you wish to call.” Callers can then make VoIP calls without restriction.

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User Guide Max-to-Max IVR Configuration

C. Request Password Only : This option prevents unauthorized access to the T1/E1 on

D. Welcome and Password : This option combines the two functions described above.

E. Use Forwarding Number : Select this IVR option for a port if you wish to have

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User Guide Network and Voice Configuration

6. Network and Voice Configuration

The network and voice configuration page can be accessed by clicking “Network and Voice Config” link.

This page shows network and voice configurations of the Net2Phone MAX system.

Network configuration figure displays the doorman IP addresses/ports and TCP/UDP start ports. User can change the IP addresses and port numbers in these boxes.

If your network uses firewall system, then you must make following request to the network administrator. {The network administrator must open up at least 3 UDP port and 2 TCP port.}

The following ports must be opened through the firewall: UDPPORT=6801 UDPPORT=21000,21001

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User Guide Network and Voice Configuration

TDPPORT=21000,21001 The ports must be allowed to make an external connection and a connection back in. The network administrator must make sure that UDP port 6801 is open. The other UDPPORT & TCPPORT can be anything in the range from 21000.

Once these port numbers are decided, the end user (Net2Phone MAX user) must set up the TCP start port and UDP start port parameters in the Network configuration table as specified by the network administrator.

If there are more than one user, then the network administrator must open up extra 2 UDPPORT & 2 TCPPORT per additional user in consecutive order.

If the customer uses a proxy server, then there is no solution. The Net2Phone Firewall Information web page states that Net2Phone cannot work through a proxy server under any circumstance.

Voice configuration figure displays the jitter buffer bounds, which are used for controlling QoS. User can change the lower/upper bounds where large lower/upper bound means less packet loss and small lower/upper bound means more packet loss. However, larger lower/upper bound increases packet delay.

IP configuration figure displays IP related addresses/parameters. User can change IP address of Net2Phone MAX, netmask, default gateway address, DNS server addresses, and domain name. User can also enable/disable DHCP client. User must fill in the default gateway and DNS server address boxes with the number 0.0.0.0 if not used. If these boxes are left blank, then configuration settings are not saved.

User must click the Save button to save the modified settings, and must reboot to apply the new settings.

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User Guide Account Configuration

7. Account Configuration

Account configuration page can be accessed by clicking “Account Config” link.

This page shows account configurations of the Net2Phone MAX system.

Account information figure displays the Net2Phone account number, PIN, and the need for login. If the user of the port want to receive incoming call, then the user must click the “Yes” radio button. If the user of the port don’t want to receive incoming call, then the user must click the “No” radio button. If the user wants to use the same account number and PIN for all ports with the same login selection, then the user must check the box named “Use account for all ports”. Then port number 2 to 8 will use the account number and PIN of port number 1.

User must click the Save button to save the modified settings

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User Guide Routing Table Configuration

8. Routing Table Configuration

Routing table configuration page can be accessed by clicking “Routing Table Config” link.

This page shows the routing table configurations of the Net2Phone MAX system.

Current routing table figure displays the entry index, the interface type (I/F), the logical port number (PORT), the phone number to be routed (NUMBER), the truncation length (TRNC), the prefix number (PRE), postfix number (POST), and the validity of table entry.

For normal use, there is no need for modifying the routing table. However, if you want to support the in-office calling function, then you must add a new entry for routing calls to other telephones connected to the Net2Phone MAX system. Also, if you want to have your own numbering plan, then you can add various entries. To add entries, you fill out the input boxes in the Add Entry figure, and click the Add Entry button.

To add a new entry, first select the interface type of the port that you want the calls to be routed.

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User Guide Routing Table Configuration

Interfaces type Description FXS interface for analog telephone FXO interface for analog PBX port VOIP interface for IP network

Next, type in the logical port number of the port. This number can be viewed at the hardware and port configuration page.

The third step is to specifying the call numbers that are to be directed to the port. You can use following characters.

0,1,2,3,4,5,6,7,8,9,* used for ordinary digits which user can input from telephone ? Represents any one of ordinary digits. ~ Represents any length of any one of ordinary digits.

(Note : ‘#’ characters are used for end-digit indicator, so # character does not appear in number field of call routing table) <Example 1> ‘1???’ represents the number which starts with digit 1 followed by any 3 digits. <Example 2> ‘011~’ represents the number which starts from 011 followed by any length of any digits.

The rest of the input boxes representing the truncation length (TRNC), the prefix number (PRE), postfix number (POST) are for reserved use and don’t need to be modified.

To delete any unwanted entry, simply type in the entry index number in the Delete Entry box, and click the Delete Entry button. However, the VOIP entries with the number field ~ and ***~ can not be deleted, since these 2 entries are necessary for correct operation of the Net2Phone MAX system.

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User Guide Routing Table Configuration

9. PBX Configuration

PBX configuration page can be accessed by clicking “PBX Config” link.

This page shows the PBX configurations of the Net2Phone MAX T1/E1 system.

Channel type configuration table enables the user to change the attribute of each channel which is one of 3 types : incoming(ic)/outgoing(og)/bothway(bw).

User must select the slot number (1~3), channel type (ic/og/bw), and the range of channel numbers (0~31).

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User Guide Routing Table Configuration

The channel range is limited by the trunk type and the signaling type. If T1 trunk is used, then the range is reduced to 0~23. And if ISDN PRI signaling with T1 trunk is used, then the range is reduced to 0~22. { * For the E1 trunk, channel 0 and 16 is reserved for sync & signaling channel. So attribute change is not possible.}

Current state table shows the current attributes of available channels.

Digital trunk configuration table displays the trunk type, line coding method, frame format, signaling method, voice gain, and input gain. Following table shows possible input parameters.

{Since voice gain and input gain parameter controls are only used when signaling or echo problem is encountered, it is recommended that average user does not modify these values.}

Digital Trunk Configuration Trunk Type E1 ,T1 Line Code * AMI, HDB3, B8ZS Frame Mode ** D4, ESF, SLS96, CRC4, NOCRC4 Signaling Type *** R2, DTMF, ISDN Voice Gain -31~31 dbm Input Gain -31~31 dbm

* AMI is used by both E1, T1 while HDB3 is used only by E1 and B8ZS is used only by T1 ** D4, ESF, SLS96 are used only by T1, and| CRC4, NOCRC4 are used only by E1 *** R2 signaling is not used in North America.

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User Guide Routing Table Configuration

ISDN configuration table displays the operation mode and the dialing mode for ISDN service. ISDN Configuration

Operation mode User, Network Dialing mode Overlap, enbloc

User mode is used when the ISDN PRI board is in network mode. Network mode is used when the ISDN PRI board is in user mode.

Overlap mode is used when user wants to send phone number digits separately one by one. Enbloc mode is used when user wants to send phone number digits as one continuous frame.

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User Guide System Information and Commands

10. System Information and Commands

The system information page can be accessed by clicking “System Information” link.

This page shows the system name, the current user name, and the current system version of the Net2Phone MAX system. User can change the system name and the user password.

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User Guide System Information and Commands

The page for default configuration loading can be accessed by clicking “Load Default Config” link.

You can load the default configurations by clicking the Load button. (Refer to Net2Phone MAX User Guide for system default settings)

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User Guide System Information and Commands

The page for system log message display can be accessed by clicking “Show Log Messages ” link.

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User Guide System Information and Commands

The page for system reboot command can be accessed by clicking “Restart System” link.

You can reboot the system by clicking the Restart button.

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User Guide System Information and Commands

The “Firewall Information” link opens a web page describing procedures for enabling net2phone access through the firewall system.

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User Guide System Software Upgrade

11. System Software Upgrade

The software upgrade procedure for Net2Phone MAX is divided into 2 parts. The first part is to download necessary files for upgrade from Net2Phone FTP server. The second part is to upload the new software to the Net2Phone MAX system. Before beginning the upgrade, following information must be prepared.

ü Username ü Password ü IP address of Net2Phone MAX

To upgrade the system software of Net2Phone MAX, you also need create a new directory named “C:\net2phone\upgrade” in your PC.

The upgrade procedure is started by clicking the “Download Latest Firmware” link.

After clicking the “check for software upgrade” image, the software download/upload page will appear which explains the upgrade procedure.

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User Guide System Software Upgrade

11.1. Download Procedure

Download procedure obtains the necessary files for upgrading Net2Phone MAX from Net2Phone FTP server.

Make sure that you have a directory named “C:\net2phone\upgrade” in your PC.

Click the download button at the bottom of this window. A browser window will pop up which is automatically connected to the FTP server with anonymous login.

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User Guide System Software Upgrade

Check the readme file for software update information. If a new software version is currently in the FTP server, then download flash.bin, vocfile.bin, axup.bat, and maxupgrade.exe file to C:/net2phone/upgrade directory. Make sure that the downloaded software version is newer than the installed software version. You can go to “System Information” page for current software version number.

11.2. Upload Procedure

Upload procedure installs the new software to the Net2Phone MAX system.

Make sure that you have flash.bin, vocfile.bin, axup.bat, and maxupgrade.exe in the directory C:/net2phone/upgrade.

Click the upload button at the bottom of this window. An explorer window will pop up with the address C:/net2phone/upgrade. There will be 4 files present, which are flash.bin, vocfile.bin, axup.bat, and maxupgrade.exe

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User Guide System Software Upgrade

Execute maxupgrade.exe by double clicking it. A DOS window will appear.

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User Guide System Software Upgrade

Input your ID of the system you want to upgrade and press enter.

Input your PASSWORD of the system you want to upgrade.

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User Guide System Software Upgrade

Input IP address of the system you want to upgrade.

Enter return key two times. An FTP application starts to upload the new software to Net2Phone MAX.

After upload is completed, a “press any key to continue” message will appear. Close the window by pressing enter key. The Net2Phone MAX system reboots itself after the software upgrade.

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User Guide T1/E1 configuration guide

12. T1/E1 Configuration Guide

12.1. Overview of Digital Trunk Interface

Digital trunk interface is used for transferring a large volume of call traffic between exchange equipments (PBX or KTS) or between Exchange equipment and peripherals. Digital trunk interface has signaling function, which exchanges information needed for traffic path setup, release and monitoring, and supervisory control function, which performs status management function and error diagnosis for trunk line.

Digital trunk interface is generally classified into E1 interface and T1 interface depending on transmitting speed and has various types of interface depending on timing, frame mode, line encoding, signaling, etc.

12.2. Timing Clock mode Setup To maintain error-free communication state between two exchange equipments connected

by digital trunk, timing clock signal must be synchronized for exact clock extraction and data tranceiving.

One of them generates timing clock signal, sends it to remote side, this clock generating system is called clock source or clock master, and the remote side receiving timing clock from clock master makes itself synchronization with clock master system using phase locked loop circuit, this system is called clock slave.

Yap Max system has a chip, this chip contains phase locked loop circuit, so that this system can be used as clock master or clock slave. Commands for timing clock mode setup of MAX system are executed in the directory of ‘MAX:/CONFIG/COMMON’.

MAX:/CONFIG/COMMON>change clkp <value> MAX:/CONFIG/COMMON>change clks <value>

‘Clkp’ is the parameter to set primary system clock source and has option values like ‘freerun’ and ‘dvu’. The former option value ‘freerun’ means clock master and the latter option value ‘dvu’ means clock slave. ‘Clks’ is the parameter to set secondary system clock source but this parameter is used only when several DVU boards are inserted into a system. ‘Clks’ parameter can be set with the same value as ‘clkp’.

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User Guide T1/E1 configuration guide

12.2.1. When MAX is set as clock master.

In this case, timing clock signal that MAX system generates is used for

telecommunication over digital trunk interface between AX-200 and exchange

equipment (PBX in the figure 1)

Figure 1. Clock Master Diagram

T1/E1

clock

MAX

PBX

The command settings for clock master are as follows:

MAX:/CONFIG/COMMON>change clkp freerun MAX:/CONFIG/COMMON>change clks freerun

12.2.2. When MAX is set as clock slave.

In this case, MAX system receives timing clock signal that exchange equipment (PBX

in the figure 2) generates and have to make own system clock synchronization to this

timing clock signal. Figure 2. Clock Slave Diagram

MAX

T1/E1

clock

PBX

The command setting for clock slave are as follows:

MAX:/CONFIG/COMMON>change clkp dvu MAX:/CONFIG/COMMON>change clks dvu

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User Guide T1/E1 configuration guide

12.3. Digital Trunk Setup

Digital trunk is classified into E1 (2.048Mhz) and T1 (1.544Mhz) depending on transmission speed. Command for digital trunk setup is executed in the directory of ‘MAX:/CONFIG/DTRUNK>’.

MAX:/CONFIG/DTRUNK>change cfg type <value>

The option value can be defined as ‘T1’ or ‘E1’.

12.3.1. Line Coding

Line coding means transformation of original digital bit stream to optimized bit pattern for easy clock extraction and error detection. AMI (Alternate mark inversion) and B8ZS (Binary 8-zero substitution) line codings are used in the T1 trunk and HDB3 (High-Density Bipolar-3 zeros) and AMI line codings are used in the E1 trunk. The line coding of MAX must be identical to that of counterpart exchange equipments.(PBX) Command to set line coding is executed in the directory of ‘MAX:/CONFIG/DTRUNK>’.

MAX:/CONFIG/DTRUNK>change cfg lcode <value>

The option value can be defined as ‘AMI’, ‘HDB3’, or ‘B8ZS’.

12.3.2. Frame Type

Data transmitted and received through digital trunk forms a bundle of bit, is called as frame. Frame types like SF (Super Frame), ESF (Extended Super Frame) and D3/D4 are used in the T1 trunk and CRC4 and non-CRC4 frames are used in the E1 trunk. The frame type of MAX must be identical to that of counterpart exchange equipments.(PBX) Command to set frame type is executed in the directory ‘MAX:/CONFIG/DTRUNK>’.

MAX:/CONFIG/DTRUNK>change cfg frame <value>

The option value can be defined as ‘D4’, ‘ESF’, ‘SLS96’, ‘CRC4’, or ‘NOCRC4’.

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User Guide T1/E1 configuration guide

12.3.3. Signaling Setup

Signaling is a protocol to exchange information needed for line monitoring, call setup or release between exchange equipments, between extension line and exchange equipment, or between network equipments. Digital trunk has two types of signaling as below.

- Common Channel Signaling (CCS)

- Channel Associated Signaling (CAS) Command for signaling setup is executed in the directory of ‘MAX:/CONFIG/DTRUNK>’.

MAX:/CONFIG/DTRUNK>change cfg sig <value>

The option value can be selected as ‘R2’, ‘DTMF’, or ‘ISDN’. ‘R2’ and ‘DTMF’ are CAS signaling type and ‘ISDN’ is CCS signaling type.

12.3.4. CCS

CCS is a signaling type used to send signaling information as out-band signal. The most notable and widely used form of this signaling type is ISDN. One disadvantage to using an ISDN primary rate interface (PRI) is the removal of one DS0, or voice channel in this case, for signaling use. Therefore, one T1 may have 23 DSOs, or B channels for user data, and one DSO, or D channel for signaling. It is possible to control multiple PRIs with a single D channel each using Non Facility Associated Signaling (NFAS), and therefore, you can configure the other PRI's in the NFAS group to use all 24 DS0s as B channels

MAXN supports T1 ISDN PRI and E1 ISDN PRI.

T1 ISDN PRI or E1 ISDN PRI depends upon digital trunk type.

12.3.5. ISDN PRI

The commands and parameters used for ISDN PRI setup are as follows:

promode – ISDN protocol mode

This parameter is used to set ISDN protocol mode. (ETSI, National ISDN-2) This setting must be identical to that of the counterpart PBX and support

MAX:/CONFIG/ISDN>change promode <value>

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User Guide T1/E1 configuration guide

etsi - ETSI ni2 - National ISDN-2

opmode

This parameter is used to choose user-side protocol or network-side protocol. If the counterpart exchange equipment is user-side, network-side have to be

chosen. If the counterpart exchange equipment is network-side, user-side have to be chosen.

MAX:/CONFIG/ISDN>change opmode <value>

user – ISDN PRI user-side pr otocol net – ISDN PRI network-side protocol

dmode

dsend

dtype

This parameter is used to set the mode to send destination number. In case of collecting numbers and sending them at a time in SETUP message, enbloc is to set. In case of sending them one by one in INFO message, overlap is to set.

MAX:/CONFIG/ISDN>change dmode <value>

overlap – overlap sending mode enbloc – enbloc sending mode

This parameter is used to choose sending a dial tone to the current channel in receiving overlap. In case of setting to ‘ON’ and SETUP message doesn’t have a destination number, a dial tone will be sent to the current channel.

MAX:/CONFIG/ISDN>change dsend <value>

This parameter is used to send continuous dial tone or discontinuous dial tone.

MAX:/CONFIG/ISDN>change dtype <value>

This parameter is used to set the time waiting the first INFO message sent from the counterpart exchange equipment in receiving overlap. MAX:/CONFIG/ISDN>change t1 <value>

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User Guide T1/E1 configuration guide

This parameter is used to set the max interval time between INFO messages in receiving overlap. If one INFO message is not followed by the next message within the t2 time, digit information received up to the latest is regarded as destination address. MAX:/CONFIG/ISDN>change t2 <value>

t3xx

This parameter is used to set the value of the timer related to ISDN hierarchy defined in ITU-T Q.931. For further details, refer to ITU-T Q.931 Recommendation. MAX:/CONFIG/ISDN>change t303 <value>

cnpn, cdpn

12.3.6. CAS

CAS is a signaling type used to send signaling information into information band. CAS signaling is divided largely into line signaling and address signaling. Line signaling indicates on-hook/off-hook status changes occurred in the network and performs call setup, call connection monitoring and release operation.

MAX:/CONFIG/ISDN>change t304 <value>

………..

MAX:/CONFIG/ISDN>change t310 <value>

This parameter is used to set numbering plan needed to use in case of sending calling party number or called party number. For further details, refer to ITU-T Q.931 Recommendation.

MAX:/CONFIG/ISDN>change cnpn <value> MAX:/CONFIG/ISDN>change cdpn <value>

Address signaling performs processing related caller-dialed number, that is, destination number.

T1 line signaling : CAS signaling means that instead of having a specific time slot(such as an ISDN D channel in PRI) designated to provide signaling only, signaling bits are within the sixth,

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twelfth, eighteenth and twenty-fourth frames of each time slot. CAS signaling is often called robbed-bit signaling because it takes bits from bearer channels and uses them for signaling. Various types of CAS signaling are available in the T1 world. The most common forms of CAS signaling are loop-start, ground-start, and EM signaling.

E1 line signaling :

The Conference of European Postal and Telecommunications administrations (CEPT) defines how bits of a PCM carrier system in E1 areas will be used and in what sequence. E1 circuits use the Channel Associated Signaling(CAS) protocol. Frames using CAS share time slot 16, which carries signaling information for two time slots or voice channels at a time.

Address signaling :

In CAS signaling, address signal is transmitted as audio tone through the voice channel. International standard for audio tone transmission is R2MFC signaling but most of countries has adapted different form each other in the number of tones used and frequency range DTMF can be used as audio tone in PBX.

12.3.7. T1 CAS

Line signaling used in MAX is E&M signaling that includes ‘E&M wink-start’, ‘E&M immediate-start’ and ‘E&M delay-start’. The command to set line signaling is executed in the directory of ‘N2P:/CONFIG/R2>’.

MAX:/CONFIG/R2> change stype <value>

The option value can be selected as ‘emi’, ‘emd’, or ‘emw’. ‘emi’ is for E&M immediate, ‘emd’ for E&M delay-start and ‘emw’ for E&M wink- start. Address signaling used in MAXN is R2MFC signaling and DTMF signaling. The command to set address signaling is executed in the directory of ‘N2P:/CONFIG/DTRUNK>’.

N2P:/CONFIG/DTRUNK>change cfg sig <value>

The option value can be selected as ‘r2’ or ‘dtmf’. ‘r2’ is for R2MFC signaling and ‘dtmf” for DTMF signaling.

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The command and parameter used in T1 CAS are as follows:

Dialing(address sending) mode

This parameter is used to select ‘overlap’ or ‘enbloc’. In Net2Phone protocol, only ‘enbloc’ is supported.

MAX:/CONFIG/R2>change dmode <value>

Robbed bit reverse

In E&M Protocol, signaling bit means line status, that is, on-hook or off-hook status. When signaling bit is ‘0’, the line status is on-hook. If ‘1’, the line status is offhook. However, other system may indicate the value vice versa. When robbed bit reverse parameter is set to ‘off’ in MAX, on-hook state has ‘0’ value and and off-hook state has ‘1’ value. If robbed bit reverse parameter is is set to ‘on’, each state becomes vice versa..

MAX:/CONFIG/R2>change rbr <value>

The option value can be selected as ‘on’ or ‘off’.

Ringback tone send in alert

This parameter is used to generate ringback tone to the current voice channel in case of receiving an alert message from Internet (or Net2Phone network)

MAX:/CONFIG/R2>change rsend <value>

The option value can be selected as ‘on’ or ‘off’.

Alert Msg send to network

This parameter is used to send an alert message to Internet in case of sending dialing information through digital trunk in the overlap dialing mode.

MAX:/CONFIG/R2>change asend <value>

The option value can be selected as ‘on’ or ‘off’.

O/G II-Group signal

This parameter is used to set class of calling extension in R2 MFC signaling. For further details, refer to ITU-T Q.441 recommendation.

MAX:/CONFIG/R2>change categ <value>

The option value can be selected from 1 to 15.

Request Charge

This parameter is used to set billing in case of receiving a call in R2 MFC signaling.. For further details, refer to ITU-T Q.441 recommendation.

MAX:/CONFIG/R2>change charge <value>

The option value can be selected as ‘on’ or ‘off’.

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I/C A-Group signal (acomp)

This parameter is used to set group-changing mode after receiving address information in case of receiving a call in R2 MFC signaling.

For further details, refer to ITU-T Q.441 recommendation.

MAX:/CONFIG/R2>change acomp <value>

The option value can be selected as ‘on’ or ‘off’.

I/C Calling Party Addr Request (sareq)

This parameter is used to request source address information in case of receiving a call in R2 MFC signaling.

MAX:/CONFIG/R2>change sareq <value>

The option value can be selected as ‘on’ or ‘off’.

max number of digits to receive(mrxd)

This parameter is used to set the maximum length of the digits of an incoming call in case of receiving a call in R2 MF signaling.

MAX:/CONFIG/R2>change mrxd <value>

The option value can be selected from 0 to 20 (0:unlimitted).

R2-MFC Tone Output Gain (gain)

This parameter is used to set output gain of R2 MFC tone.

MAX:/CONFIG/R2>change gain <value>

The option value can be selected from -31 dB to 0 dB.

Dial tone send in seizure (dsend)

This command is used to send dial tone to voice channel after receiving seizure signal in DTMF signaling.

MAX:/CONFIG/R2>change dsend <value>

The option value can be selected as ‘on’ or ‘off’.

wait first DTMF timer (fdwt)

This parameter is used to set the time to wait for the first DTMF message after receiving seizure signal in DTMF signaling. If the first DTMF message is not received until this timer gets to time out, the call is released.

MAX:/CONFIG/R2>change fdwt <value>

The option value can be selected from 1 second to 30 seconds.

wait second DTMF timer (sdwt)

This parameter is used to set the time to wait for DTMF message for each digit number after receiving seizure signal and the first DTMF message in DTMF signaling. the next DTMF message is not received until this timer gets to time out, the number of the incoming call will be regarded as collected.

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MAX:/CONFIG/R2>change sdwt <value>

The option value can be selected from 1 second 30 seconds.

Dial guard time (guard)

This parameter is used to set the time from the point of sending seizure signal or receiving seizure ack signal preceded by sending seizure signal, to the point of DTMF tone being sent, in case of an outgoing call in DTMF signaling.

MAX:/CONFIG/R2>change guard <value>

The option value can be selected from 10 ms to 1000 ms.

Dial duration (dur)

This parameter is used to set the time to maintain DTMF tone in sending DTMF tone in DTMF signaling.

MAX:/CONFIG/R2>change dur <value>

The option value can be selected from 10 ms to 1000 ms.

Dial interval (intv)

This parameter is used to set the inter-digit time between DTMF tones in DTMF signaling.

MAX:/CONFIG/R2>change intv <value>

The option value can be selected from 10 ms 1000 ms.

Dial Tone Type (dtype)

This parameter is used to set dial tone type to send through voice channel after receiving seizure signal in DTMF signaling.

MAX:/CONFIG/R2>change dtype <value>

The option value can be selected as ‘cont’ or ‘dcont’(discontinuous). ‘cont’ means continuous dial tone and ‘dcont’ indicates discontinuous tone.

Seizure Guard Time (t1)

This parameter is used to set the time needed to recognize as seizure signal. To be recognized as seizure signal, the value of signaling bit must be maintained and unchanged for a certain time (seizure guard time) after receiving seizure signaling bit in CAS line signaling.

MAX:/CONFIG/R2>change t1 <value>

The option value can be selected from 0 ms to 1000 ms.

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Clear Forward Guard Time (t2)

This parameter is used to set the time needed to recognize as clear forward guard signal. To be recognized as clear forward signal, the value of signaling bit must be maintained and unchanged for a certain time (clear forward guard time) after receiving clear forward signaling bit in CAS line signaling.

MAX:/CONFIG/R2>change t2 <value>

The option value can be selected from 0 ms to 1000 ms.

Clear Forward Wait Guard Time (t3)

This parameter is used to set the time wait for clear forward guard signal after sending clear backward signal in CAS line signaling. IF clear forward signal is not received within this time, the voice channel will be blocked. AX-MAX:/CONFIG/R2>change t3 <value> The option value can be selected from 1000 ms to 60000 ms.

Seizure Ack Guard Time (t4)

This parameter is used to set the time needed to recognize as seizure ack signal. To be recognized as seizure ack signal, the value of signaling bit must be maintained and unchanged for a certain time (seizure ack guard time) after receiving seizure ack signaling bit in CAS line signaling.

MAX:/CONFIG/R2>change t4 <value>

The option value can be selected from 0 ms to 1000 ms.

Glare Guard Time (t5)

This parameter is used to set seizure ack duration in CAS line signaling.

MAX:/CONFIG/R2>change t5 <value>

The option value can be selected from 0 ms to 1000 ms.

Answer Guard Time (t6)

This parameter is used to set the time needed to recognize as answer signal. To be recognized as answer signal, the value of signaling bit must be maintained and unchanged for a certain time (answer guard time) after receiving answer signaling bit in CAS line signaling.

MAX:/CONFIG/R2>change t6 <value>

The option value can be selected from 0 ms to 1000 ms.

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Clear Backward Guard Time (t7)

This parameter is used to set the time needed to recognize as clear backward signal. To be recognized as clear backward signal, the value of signaling bit must be maintained and unchanged for a certain time (clear backward guard time) after receiving clear backward signaling bit in CAS line signaling.

MAX:/CONFIG/R2>change t7 <value>

The option value can be selected from 0 ms 1000 ms.

Release Guard Time (t8)

This parameter is used to set the time needed to recognize as release guard signal. The voice channel must be maintained in idle state for a certain time (release guard time) between release state and seizure state.

MAX:/CONFIG/R2>change t8 <value>

The option value can be selected from 0 ms~ 1000 ms.

Reanswer Guard Time (t9)

This parameter is used to set the time needed to maintain for a certain time (reanswer guard time) after receiving answer signaling bit preceded by clear backward signal in CAS line signaling.

MAX:/CONFIG/R2>change t9 <value>

The option value can be selected from 0 ms to 1000 ms.

Release Wait Guard Time (t10)

This parameter is used to set the time to wait until the channel is released after sending clear forward in CAS line signaling. If the channel is not released within this time, it will be blocked.

MAX:/CONFIG/R2>change t10 <value>

The option value can be selected from 0 ms to 1000 ms.

Block Detect Guard Time (t11)

This parameter is used to set the time needed to recognize as block signal. To be recognized as block signal, the value of signaling bit must be maintained and unchanged for a certain time (block detect guard time) after receiving block detect signaling bit in CAS line signaling.

MAX:/CONFIG/R2>change t11 <value>

The option value can be selected from 0 ms to 1000 ms.

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Glare Detect Guard Time (t12)

This parameter is used to set the time needed to recognize glare occurring when both communication sides in CAS line signaling seize a voice channel simultaneously.

MAX:/CONFIG/R2>change t12 <value>

The option value can be selected from 100 ms to 10000 ms.

Glare Detect Seizure Maintain Time (t13)

This parameter is used to set the time needed to maintain seizure state after recognizing glare in CAS line signaling.

MAX:/CONFIG/R2>change t13 <value>

The option value can be selected from 100 ms to 10000 ms.

12.3.8. E1 CAS

Wink-start signaling is used in E1 digital trunk of the MAX.

MAX:/CONFIG/R2>change stype wink

E1 line signaling must be set to “wink”. R2 MFC and DTMF can be set for address signaling in E1 CAS of MAX.

Command to set address signaling is executed in the directory of ‘MAX:/CONFIG/DTRUNK>’.

MAX:/CONFIG/DTRUNK>change cfg sig <value>

The option value can be selected as “R2” or “DTMF”. “R2” means R2 MF type and “DTMF” indicates DTMF type. Other commands and parameters related to E1 CAS are used in the same way as T1 CAS.

12.4. Configuration Setting In interoperability test of MAX with PBX using digital trunk, the configuration must be set as

below.

1) PCM Coding Law Setting

Set PCM coding law identical with interoperating PBX.

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2) Clock Source Setting

Refer to the above article ‘2. Timing Clock mode Setup’ and set clock mode.

3) Trunk Type Setting

Set a trunk type fit for digital trunk to interoperate with.

4) Signaling Type Setting

Set signaling type needed for interoperability test.

5) Line Coding and Frame Mode Setting

Set line coding and frame mode respectively fit for the trunk type and signaling type as

set in the above step of 3) and 4).

6) Channel Type Setting

Set each voice channel type.

Each voice channel may be set to ‘incoming’, ‘outgoing’, or ‘bothway’.

- Incoming : Receiving call is only available.

- Outgoing : Sending call is only available.

- Bothway : Both receiving and sending call are available.

7) Signaling-related Parameter Setting

Adjust parameters of directory corresponding to signaling type set in the above step of 4).

8) Saving Setting Value

Save setting values to apply changed values even after rebooting system.

The command for saving can be executed in the directory of ‘MAX:/CONFIG>‘.

9) Reset

Reset the system to apply the above changed.

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12.4.1. Configuration Example 1

Below is an example of T1 CAS setting.

MAX:/CONFIG/COMMON> change pcm ulaw Configuration is not saved. You must save the changed configurations Command successfully end. You Must RESET to apply modified value(s) to system. MAX:/CONFIG/COMMON> change clkp dvu Configuration is not saved. You must save the changed configurations Command successfully end. MAX:/CONFIG/COMMON> change clks dvu Configuration is not saved. You must save the changed configurations Command successfully end. MAX:/CONFIG/COMMON>

MAX:/CONFIG/COMMON> show ========================================================================== MAX System Configurations ========================================================================== pcm_coding_law (pcm) : U-LAW nv-memory save mode (save) : MANUAL yes/no prompt mode (prompt) : ENABLE(ON) watchdog timer (wdt) : ENABLE(ON) primary clock source (clkp) : LOCAL TRUNK(DVU) secondary clock source (clks) : LOCAL TRUNK(DVU) ==========================================================================

MAX:/CONFIG/DTRUNK> change cfg type t1

PCM coding setting : µ-law

Clock source setting : clock slave

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signaling, line

mode and

voice channels are

You Must RESET to apply modified value(s) to system. MAX:/CONFIG/DTRUNK> change cfg lcode ami Configuration is not saved. You must save the changed configurations Command successfully end. You Must RESET to apply modified value(s) to system. MAX:/CONFIG/DTRUNK> chang cfg frame d4 Configuration is not saved. You must save the changed configurations Command successfully end. You Must RESET to apply modified value(s) to system. MAX:/CONFIG/DTRUNK> MAX:/CONFIG/DTRUNK> show cfg ==========================================================================

In T1 CAS DTMF

Digital Trunk Configurations

code is meant for “AMI”

========================================================================== trunk type (type) : T1 line code (lcode) : AMI(T1, E1) frame mode (frame) : D4(T1) signaling type (sig) : DTMF(CAS) Voice Output Gain (vgain) : -3 dbm PCM Input Gain (igain) : -3 dbm ========================================================================== MAX:/CONFIG/DTRUNK> show line ========================================================================== Channel Type configurations ========================================================================== channel type | I=Incoming O=Outgoing B=Bothway | S=Signaling-CH F=Frame-Sync X=undefined

--------------------------------------------------------------------------

frame for “D4” mode.

channel number | 1 2 3 | 01234567890123456789012345678901

--------------------------------------------------------------------------

[slot/port] [3/0] | BBBBBBBBBBBBBBBBBBBBBBBBXXXXXXXX ==========================================================================

MAX:/CONFIG/R2> MAX:/CONFIG/R2> ch stype emi

All used as bothway.

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start type. If there is any trouble in

interoperation, the value of each

Configuration is not saved. You must save the changed configurations Command successfully end. You Must RESET to apply modified value(s) to system. MAX:/CONFIG/R2> show ========================================================================== R2 Configurations ========================================================================== Dialing Mode (dmode) : 1(ENBLOC) R2 Line signaling type (stype) : E&M IMM robbed bit reversion(rbr) : DISABLE(OFF) Ringback tone send in alert (rsend) : ENABLE(ON) Alert Msg send to network (asend) : ENABLE(ON) Seizure Guard Time (t1) : 30 ms

Line signaling is E&M immediate-

timer is selected as default value.

Clear Foward Guard Time (t2) : 200 ms Clear Foward Wait Guard Time (t3) : 30000 ms Seizure Ack Guard Time (t4) : 1000 ms Glare Guard Time (t5) : 360 ms Answer Guard Time (t6) : 200 ms Clear Backward Guard Time (t7) : 200 ms Release Guard Time (t8) : 200 ms Reanswer Guard Time (t9) : 200 ms Release Wait Guard Time (t10) : 1000 ms Block Detect Guard Time (t11) : 640 ms Glare Detect Guard Time (t12) : 200 ms If glare is detected, stay seizure(t13): 500 ms ========================================================================== MAX:/CONFIG> save This command isn't recoverable. Are you sure(y/n)?y

Configurations in working memory is saved to NV-Memory.

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12.4.2. Configuration Example 2

Below is an example of T1 PRI setting.

MAX:/CONFIG/COMMON> show ==========================================================================

MAX System Configurations ========================================================================== pcm_coding_law (pcm) : U-LAW nv-memory save mode (save) : MANUAL yes/no prompt mode (prompt) : ENABLE(ON) watchdog timer (wdt) : ENABLE(ON) primary clock source (clkp) : LOCAL TRUNK(DVU) secondary clock source (clks) : LOCAL TRUNK(DVU) ==========================================================================

MAX:/CONFIG/COMMON> show

MAX:/CONFIG/DTRUNK> change cfg type t1 Configuration is not saved. You must save the changed configurations Command successfully end. You Must RESET to apply modified value(s) to system. MAX:/CONFIG/DTRUNK> change cfg sig isdn

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In T1 PRI, B8ZS is usually used as line code

Configuration is not saved. You must save the changed configurations Command successfully end. You Must RESET to apply modified value(s) to system. MAX:/CONFIG/DTRUNK> change cfg locode b8zs Configuration is not saved. You must save the changed configurations Command successfully end. You Must RESET to apply modified value(s) to system. MAX:/CONFIG/DTRUNK> change cfg frame esf Configuration is not saved. You must save the changed configurations Command successfully end. You Must RESET to apply modified value(s) to system. MAX:/CONFIG/DTRUNK> show cfg ========================================================================== Digital Trunk Configurations ========================================================================== trunk type (type) : T1 line code (lcode) : B8ZS(T1)

and frame mode as ESF.

frame mode (frame) : ESF(T1) signaling type (sig) : ISDN(CCS) Voice Output Gain (vgain) : -3 dbm PCM Input Gain (igain) : -3 dbm ==========================================================================

MAX:/CONFIG/DTRUNK> MAX:/CONFIG/DTRUNK> show line

========================================================================== Channel Type configurations ========================================================================== channel type | I=Incoming O=Outgoing B=Bothway | S=Signaling-CH F=Frame-Sync X=undefined

------------------------------------------------------------------------- channel number | 1 2 3 | 01234567890123456789012345678901

------------------------------------------------------------------------- [slot/port] [3/0] | BBBBBBBBBBBBBBBBBBBBBBBSXXXXXXXX

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voice channel is used

========================================================================== MAX:/CONFIG/DTRUNK> MAX:/CONFIG/DTRUNK> MAX:/CONFIG/DTRUNK> cd .. MAX:/CONFIG> isdn MAX:/CONFIG/ISDN> show ========================================================================== ISDN Configurations ========================================================================== Protocol Mode (prmode): (NI2) Operation Mode (opmode): (NETWORK-MODE) Dialing Mode in O/G Call SETUP (dmode) : (ENBLOC-MODE DIAL) Dial tone send in seizure (dsend) : DISABLE(OFF)

The last as signaling channel.

Dial Tone Type (dtype) : CONTINUOUS wait first INFO timer (t1) : 5 sec wait second INFO timer (t2) : 3 sec Q931 Timer - Call Delivered (t301) : 180 sec Q931 Timer - Call Initiated (t303) : 4 sec Q931 Timer - Overlap Sending (t304) : 4 sec Q931 Timer - Disconnect Request (t305) : 30 sec Q931 Timer - Release Request (t308) : 4 sec Q931 Timer - Outgoing Call Proceeding (t310) : 10 sec ISDN Calling Party Numbering Plan (cnpn) : (UNKNOWN)

ISDN Called Party Numbering Plan (cdpn) : (UNKNOWN)

========================================================================== MAX:/CONFIG> save This command isn't recoverable. Are you sure(y/n)?y

Configurations in working memory is saved to NV-Memory.

MAX:/CONFIG/ISDN