Chapter 12: Troubleshooting; One Telephone Stops Working - Avaya G250 Installation And Upgrade Manual

Chapter 12: Troubleshooting

This chapter provides basic troubleshooting information.

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 G250 Media Gateway. Take the
following steps to identify the problem:
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 G250 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. If the telephone is connected to a PoE port and does not have its own power supply, plug in
a power supply and see if the telephone works. If it works, the problem is with the PoE
configuration or power allocation. Use the show powerinline CLI command to display
the relevant information. PoE may have been disabled on the port to which the telephone is
connected, of the telephone may not be receiving power due to the priority level configured
on the port, or due to the overall PoE power budget being exceeded. For information about
PoE configuration, see Administration of the Avaya G250 and the G350 Gateways,
03-300436.
6. 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 105.
Appendix A: Front panel
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