Chapter 13: Troubleshooting; One Telephone Stops Working; Identifying The Problem When One Phone Stops Working - Avaya G450 Installing And Upgrading

Chapter 13: Troubleshooting

You can have problems with phones, a trunk, the power, or the WAN line. It is necessary to
identify the specific problem to figure out how it can be resolved. In addition, you may have to
perform an NVRAM initialization if you are unable to access the CLI.

One telephone stops working

If one telephone in the network stops working, but the other telephones and data devices
continue to work normally, the problem is probably with the telephone itself. There could also be
a problem with the telephone's connection to the Avaya G450 Media Gateway, or a power
management event, in which the power budget is exceeded and low priority ports are
disconnected.

Identifying the problem when one phone stops working

1. Replace the telephone. If the new telephone works, the problem is with the telephone
itself. If the new telephone does not work, go on to the next step.
2. Connect the telephone to a different power supply. If the telephone works, the problem is
with the original power supply. If the telephone still does not work, go on to the next step.
3. Connect the telephone to a different network port. If the telephone works, the problem is
with the original network port. If the telephone still does not work, go on to the next step.
4. Check the module on the Avaya G450 Media Gateway to which the telephone is
connected. Check whether the physical connection is loose, and tighten the connection if
necessary. If the telephone still does not work, go on to the next step.
5. Check the LEDs on the module to which the telephone connects. Make sure the LED for
the port to which the telephone is connected is lit. If it is not lit, the problem may be with the
port or the module. If the ALM LED is lit, this is also an indication that there is a problem
with the port or the module. Note the port and module and contact your project manager.
For information on the various modules and their LEDs, see
description on page 131.
Appendix A: Front panel
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