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Cisco Unified Communications Manager Settings on Phone

Problem

The phone may have the wrong Cisco Unified Communications Manager information.

Solution

On the Cisco Unified IP Phone, press the Settings button, choose Device Configuration, and look at the

Unified CM Configuration options. The Cisco Unified IP Phone attempts to open a TCP connection to all the

Cisco Unified Communications Manager servers that are part of the assigned Cisco Unified Communications

Manager group. If none of these options contain IP addresses or show Active or Standby, the phone is not

properly registered with Cisco Unified Communications Manager. See

Phone Registration, on page 4

Cisco CallManager and TFTP Services Are Not Running

Problem

If the Cisco CallManager or TFTP services are not running, phones may not be able to start up properly. In

such a situation, it is likely that you are experiencing a systemwide failure, and other phones and devices are

unable to start up properly.

Solution

If the Cisco CallManager service is not running, all devices on the network that rely on it to make phone calls

are affected. If the TFTP service is not running, many devices cannot start up successfully. For more

information, see

Configuration File Corruption

Problem

If you continue to have problems with a particular phone that other suggestions in this chapter do not resolve,

the configuration file may be corrupted.

Solution

Create a new phone configuration file. See

Cisco Unified Communications Manager Phone Registration

Problem

The phone is not registered with Cisco Unified Communications Manager.

Solution

A Cisco Unified IP Phone can register with a Cisco Unified Communications Manager server only if the

phone has been added to the server or if autoregistration is enabled. Review the information and procedures

Cisco Unified Communications Manager Phone Addition Methods

to the Cisco Unified Communications Manager database.

Troubleshooting and Maintenance

for tips on resolving this problem.

Start Service, on page

15.

Create New Phone Configuration File, on page

Troubleshooting and Maintenance

Cisco Unified Communications Manager

14.

to ensure that the phone has been added