Cisco 7906G Administration Guide - Page 227

Chapter 9 Troubleshooting and Maintenance Cisco Unified IP Phone Resets Unexpectedly You can check whether a Cisco Unified IP Phone received a command from Cisco Unified Communications Manager to reset by pressing the Applications 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 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 Step 2 Step 3 Step 4 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. 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. On the Cisco Unified Communications Manager server, verify that the local host files have the correct Cisco Unified Communications Manager server name mapped to the correct IP address. Refer to Configuring The IP Hosts File on a Windows 2000 Communications Manager Server, available at this URL: http://www.cisco.com/warp/customer/788/AVVID/cm_hosts_file.html From Cisco Unified Communications Manager, choose System > Server and verify that the server is referred to by its IP address and not by its DNS name. OL-14585-01 Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.1 9-11