Cisco 7970G Administration Guide - Page 196

Status Menu Chapter 7 Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone Table 7-2 Status Messages on the Cisco Unified IP Phone 7970 Series (continued) Message Checksum Error CTL Installed CTL update failed DHCP timeout Description Possible Explanation and Action Downloaded software file is corrupted. Obtain a new copy of the phone firmware and place it in the TFTPPath directory. You should only copy files into this directory when the TFTP server software is shut down, otherwise the files may be corrupted. A certificate trust list (CTL) file is installed in the phone. None. This message is informational only. For more information about the CTL file, refer to Cisco Unified Communications Manager Security Guide. The phone could not update its certificate trust list (CTL) file. Problem with the CTL file on the TFTP server. For more information, refer to Cisco Unified Communications Manager Security Guide. DHCP server did not respond. • Network is busy-The errors should resolve themselves when the network load reduces. • No network connectivity between the DHCP server and the phone-Verify the network connections. • DHCP server is down-Check configuration of DHCP server. • Errors persist-Consider assigning a static IP address. See the "Network Configuration Menu" section on page 4-7 for details on assigning a static IP address. Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 6.1 7-6 OL-14626-01