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 Cisco Unified Communications Manager
Phone Registration, on page 4 for tips on resolving this problem.
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 Start Service, on page 15.
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 Create New Phone Configuration File, on page 14.
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
in Cisco Unified Communications Manager Phone Addition Methods to ensure that the phone has been added
to the Cisco Unified Communications Manager database.
Troubleshooting and Maintenance
4
Troubleshooting and Maintenance
Cisco Unified Communications Manager Settings on Phone
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