Verifying That The Phones Have Not Been Intentionally Reset; Eliminating Dns Or Other Connectivity Errors - Cisco 7970G Administration Manual

Chapter 9 Troubleshooting and Maintenance

Verifying that the Phones Have Not Been Intentionally Reset

Eliminating DNS or Other Connectivity Errors

Step 1
Step 2
Step 3
Step 4
Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.1 (SIP), Cisco Unified IP Phones
OL-11524-01
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 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 CallManager administration.
Reset-Restart—Phone closed due to receiving a Reset/Restart from
•
Cisco Unified CallManager administration.
If the phone continues to reset, follow these steps to eliminate DNS or other
connectivity errors:
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 9-17
details.
Modify DHCP and IP settings.
Disable DHCP. See the
a.
for instructions.
Assign static IP values to the phone. See the
b.
section on page 4-7
for other functioning Cisco Unified IP Phones.
Assign TFTP server. See the
c.
page 4-7 for instructions. Use the same TFTP server used for other
functioning Cisco Unified IP Phones.
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.
From Cisco Unified CallManager, choose System > Server and verify that the
server is referred to by its IP address and not by its DNS name.
Cisco Unified IP Phone Resets Unexpectedly
"Network Configuration Menu" section on page 4-7
for instructions. Use the same default router setting used
"Network Configuration Menu" section on
"Network Configuration Menu"
for
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