Registering The Phone With Cisco Unified Communications Manager; Symptom: Cisco Unified Ip Phone Unable To Obtain Ip Address; Cisco Unified Ip Phone Resets Unexpectedly - Cisco 7970G - IP Phone VoIP Administration Manual

Cisco Unified IP Phone Resets Unexpectedly

Registering the Phone with Cisco Unified Communications Manager

Symptom: Cisco Unified IP Phone Unable to Obtain IP Address

Cisco Unified IP Phone Resets Unexpectedly
Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 6.1
9-8
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
auto-registration is enabled. Review the information and procedures in the
"Adding Phones to the Cisco Unified Communications Manager Database"
section on page 2-13 to ensure that the phone has been added to the
Cisco Unified Communications Manager database.
To verify that the phone is in the Cisco Unified Communications Manager
database, choose Device > Phone > Find from Cisco Unified Communications
Manager Administration to search for the phone based on its MAC Address. For
information about determining a MAC address, see the
Address of a Cisco Unified IP Phone" section on page
If the phone is already in the Cisco Unified Communications Manager database,
its configuration file may be damaged. See the
File" section on page 9-7
If a phone is unable to obtain an IP address when it starts up, the phone may be
not be on the same network or VLAN as the DHCP server, or the switch port to
which the phone is connected may be disabled.
Make sure that the network or VLAN to which the phone is connected has access
to the DHCP server, and make sure that the switch port is enabled.
If users report that their phones are resetting during calls or while idle on their
desk, you should investigate the cause. If the network connection and
Cisco Unified Communications Manager connection are stable, a Cisco Unified
IP Phone should not reset on its own.
Typically, a phone resets if it has problems connecting to the Ethernet network or
to Cisco Unified Communications Manager. These sections can help you identify
the cause of a phone resetting in your network:
Verifying Physical Connection, page 9-9
•
Chapter 9
"Creating a New Configuration
for assistance.
Troubleshooting and Maintenance
"Determining the MAC
2-20.
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