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100

101

54 Troubleshooting

Interface Port use Port number

TLAN signaling

5000

TLAN Voice 5200 (configurable - same as

base voice port number on

VGMCs)

Note: For the voice ports, Cisco routers compress RTP headers only

when UDP ports are numbered 16384 and higher. Other vendors

also look at UDP port ranges to compress. If a customer requires

compressed RTP header information, they may have to change the

voice port value in EM.

TCP ports

The VGMC uses the following TCP ports on the TLAN and ELAN

interfaces.

Table 2

VGMC/Signaling Server TCP Ports

Interface Platform Port use Port number

VGMC Signaling

Server

TLAN

Sun RPS

111

TLAN

FTP

ELAN

Telnet

ELAN

Call Server TCP signaling

15000

SNMP traps

You can use the itgAlarmTest or itsAlarmTest commands (see

“itgAlarmTest ” (page 177) and “itsAlarmTest ” (page 184)) to verify that

the SNMP traps are configured correctly and that the receiving device is

receiving the alarms. This test sends the alarm with none of the issues

of a real alarm (for example, unplugging the TLAN to generate the TLAN

loss of carrier alarm also unregisters the gateway channels and affects call

processing). Remember to configure all VGMC/Signaling Servers in the

Alarm Notification application so the SNMP traps appear when they occur.

DSP and voice quality troubleshooting

DIM error codes

The DIM can print an error message that indicates a problem reported

by the DSP. These errors can be channel-dependent (for example, a

command to a channel failed), or not (for example, a DSP reset that

affects multiple channels). The following two messages can appear

depending on the VGMC application version running.

Nortel Communication Server 1000

Troubleshooting Guide for Distributors

NN43001-730 02.02 31 December 2009

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