Registering The Phone With Cisco Unified Callmanager; Symptom: Cisco Unified Ip Phone Unable To Obtain Ip Address; Cisco Unified Ip Phone Resets Unexpectedly - Cisco 7961G - IP Phone VoIP Administration Manual

Cisco Unified IP Phone Resets Unexpectedly

Registering the Phone with Cisco Unified CallManager

Symptom: Cisco Unified IP Phone Unable to Obtain IP Address

Cisco Unified IP Phone Resets Unexpectedly
Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE Administration Guide for Cisco Unified CallManager
9-8
A Cisco Unified IP Phone can register with a Cisco Unified CallManager server
only if the phone has been added to the server or if auto-registration is enabled.
Review the information and procedures in the
Unified CallManager Database" section on page 2-12
been added to the Cisco Unified CallManager database.
To verify that the phone is in the Cisco Unified CallManager database, choose
Device > Phone > Find from Cisco Unified CallManager Administration to
search for the phone based on its MAC Address. For information about
determining a MAC address, see the
Unified IP Phone" section on page
If the phone is already in the Cisco Unified CallManager database, its
configuration file may be damaged. See the
section on page 9-7 for assistance.
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 CallManager 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 CallManager. These sections can help you identify the cause of
a phone resetting in your network:
Verifying the Physical Connection, page 9-9
•
Identifying Intermittent Network Outages, page 9-9
•
Chapter 9 Troubleshooting and Maintenance
"Adding Phones to the Cisco
to ensure that the phone has
"Determining the MAC Address for a Cisco
2-19.
"Creating a New Configuration File"
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