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Troubleshooting and Maintenance
This chapter provides information that can assist you in troubleshooting problems with your ATA 190 or
with your IP telephony network. It also explains how to clean and maintain your phone.
Resolving Startup Problems
After installing an ATA 190 into your network and adding it to Cisco Unified Communications Manager,
the phone starts up as described in the
start up properly, see the following sections for troubleshooting information:
•
•
•
Symptom: The ATA 190 Does Not Go Through its Normal Startup Process
When you connect a phone in the network port, the phone goes through its normal startup process as
described in the
through the startup process, the cause may be faulty cables, bad connections, network outages, lack of
power, and so on. Or, the phone may not be functional.
To determine whether the phone is functional, follow these suggestions to systematically eliminate these
other potential problems:
1.
2.
OL-31821-02
Symptom: The ATA 190 Does Not Go Through its Normal Startup Process, page D-1
Symptom: The ATA 190 Does Not Register with Cisco Unified Communications Manager,
page D-2
Symptom: ATA 190 Unable to Obtain IP Address, page D-4
"Verify the ATA 190 Startup Process" section on page
Verify that the network port is functional:
–
Exchange the Ethernet cables with cables that you know are functional.
Disconnect a functioning phone from another port and connect it to this network port to verify
–
that the port is active.
–
Connect the phone that does not start up to a different network port that is known to be good.
–
Connect the phone that will not start up directly to the port on the switch, eliminating the patch
panel connection in the office.
Verify that the phone is receiving power:
–
If you are using external power, verify that the electrical outlet is functional.
–
If you are using the external power supply, switch with a unit that you know to be functional.
Cisco ATA 190 Analog Telephone Adapter Administration Guide for SIP (Version 1.1)
A P P E N D I X
"Install the ATA 190" section on page
D
3-3. If the phone does not
3-3. If the phone does not go
D-1
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Table of Contents
Troubleshooting
