Verify Dns Settings; Start Service; Control Debug Information From Cisco Unified Communications Manager - Cisco 7800 Series Administration Manual

Cisco IP Phone Troubleshooting

Verify DNS Settings

Procedure
Step 1
On the phone, press Applications
Step 2 Select Admin Settings > Network Setup > IPv4 Setup
Step 3
Check that the DNS Server 1 field is set correctly.
Step 4 You should also verify that a CNAME entry was made in the DNS server for the TFTP server and for the
Cisco Unified Communications Manager system.
You must also ensure that DNS is configured to do reverse lookups.
Related Topics

Start Service

A service must be activated before it can be started or stopped.
Procedure
Step 1 From Cisco Unified Communications Manager Administration, choose Cisco Unified Serviceability from
the Navigation drop-down list and click Go.
Step 2
Choose Tools > Control Center - Feature Services.
Step 3 Choose the primary Cisco Unified Communications Manager server from the Server drop-down list.
The window displays the service names for the server that you chose, the status of the services, and a service
control panel to start or stop a service.
Step 4 If a service has stopped, click the corresponding radio button and then click Start.
The Service Status symbol changes from a square to an arrow.
Control Debug Information from Cisco Unified Communications
Manager
If you are experiencing phone problems that you cannot resolve, Cisco TAC can assist you. You will need to
turn debugging on for the phone, reproduce the problem, turn debugging off, and send the logs to TAC for
analysis.
Because debugging captures detailed information, the communication traffic can slow down the phone, making
it less responsive. After you capture the logs, you should turn debugging off to ensure phone operation.
Phone Cannot Connect Using
Cisco IP Phone 7800 Series Administration Guide for Cisco Unified Communications Manager
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DNS, on page 193
Verify DNS Settings
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