Cisco 7906G Administration Guide

Chapter 9 Troubleshooting and Maintenance
Cisco Unified IP Phone Resets Unexpectedly
9-10
Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager 5.1
OL-11515-01
Verifying that the Phones Have Not Been Intentionally Reset
If you are not the only administrator with access to Cisco Unified CallManager,
you should verify that no one else has intentionally reset the phones.
You can check whether a Cisco Unified IP Phone received a command from
Cisco
Unified CallManager to reset by pressing the Menu button on the phone
and choosing Settings > Status > Network Statistics. If the phone was recently
reset one of these messages appears:
• Reset-Reset—Phone closed due to receiving a Reset/Reset from
Cisco
Unified CallManager administration.
• Reset-Restart—Phone closed due to receiving a Reset/Restart from
Cisco
Unified CallManager administration.
Eliminating DNS or Other Connectivity Errors
f the phone continues to reset, follow these steps to eliminate DNS or other
connectivity errors:
Procedure
Step 1 Use the Erase softkey to reset phone settings to their default values. See the
“Resetting or Restoring the Cisco Unified IP Phone” section on page 9-18 for
details.
Step 2 Modify DHCP and IP settings.
a. Disable DHCP. See the “Network Configuration Menu” section on page 4-7
for instructions.
b. Assign static IP values to the phone. See the “Network Configuration Menu”
section on page 4-7 for instructions. Use the same default router setting used
for other functioning Cisco Unified IP Phones.
c. Assign TFTP server. See the “Network Configuration Menu” section on
page 4-7 for instructions. Use the same TFTP server used for other
functioning Cisco Unified IP Phones.
Step 3 On the Cisco Unified CallManager server, verify that the local host files have the
correct Cisco
Unified CallManager server name mapped to the correct IP address.

Cisco 7906G Specifications

General

Brand	Cisco
Model	7906G
Category	IP Phone
Language	English