Cisco 7906G Administration Guide

Chapter 9 Troubleshooting and Maintenance
Troubleshooting Cisco Unified IP Phone Security
9-12
Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager 5.1
OL-11515-01
Phone reports TFTP authorization
failure.
• The TFTP address for the phone does
not exist in the CTL file.
• If you created a new CTL file with a
new TFTP record, the existing CTL
file on the phone may not contain a
record for the new TFTP server.
Phone does not register with
Cisco
Unified CallManager.
The CTL file does not contain the correct
information for the
Cisco
Unified CallManager server.
Phone does not request signed
configuration files.
The CTL file does not contain any TFTP
entries with certificates.
Table 9-1 Cisco Unified IP Phone Security Troubleshooting (continued)
Problem Possible Cause

Cisco 7906G Specifications

General

Brand	Cisco
Model	7906G
Category	IP Phone
Language	English