Cisco 7961G Administration Guide - Page 177

Chapter 7 Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone Status Menu Table 7-2 Status Messages on the Cisco Unified IP Phone (continued) Message DNS timeout DNS unknown host Duplicate IP Description Possible Explanation and Action DNS server did not respond. • Network is busy-The errors should resolve themselves when the network load reduces. • No network connectivity between the DNS server and the phone-Verify the network connections. • DNS server is down-Check configuration of DNS server. DNS could not resolve the name of the TFTP server or Cisco Unified CallManager. • Verify that the host names of the TFTP server or Cisco Unified CallManager are configured properly in DNS. • Consider using IP addresses rather than host names. Another device is using the IP address assigned to the phone. • If the phone has a static IP address, verify that you have not assigned a duplicate IP address. See the "Network Configuration Menu" section on page 4-7 section for details. • If you are using DHCP, check the DHCP server configuration. Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE Administration Guide for Cisco Unified CallManager OL-11528-01 7-7