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Cisco 7971G-GE Manual

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Cisco Unified IP Phone 7970G/7971G-GE for Cisco Unified Communications Manager 6.0
OL-12232-01
Chapter 9 Troubleshooting and Maintenance
Cisco Unified IP Phone Resets Unexpectedly
Verifying that the Phones Have Not Been Intentionally Reset
If you are not the only administrator with access to
Cisco Unified Communications Manager, 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 Communications Manager to reset by pressing the Settings button
on the phone and choosing 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 Communications Manager Administration.
• Reset-Restart—Phone closed due to receiving a Reset/Restart from
Cisco Unified Communications Manager Administration.
Eliminating DNS or Other Connectivity Errors
If 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 9-21 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.
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