Cisco 7941G - Unified IP Phone VoIP Administration Manual page 245

Chapter 9 Troubleshooting and Maintenance
General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module 7914 (SCCP Phones Only)
Table 9-2 Cisco Unified IP Phone Troubleshooting (continued)
Summary
One-way audio.
Peer to peer image distribution fails. If the peer to peer image distribution fails, the phone will
Cisco VT Advantage/Unified Video
Advantage (CVTA)
General Troubleshooting Tips for the Cisco
Unified IP Phone Expansion Module 7914 (SCCP
Phones Only)
Table 9-3 Cisco Unified IP Phone Expansion Module 7914 Troubleshooting
Problem
No display on the Cisco
Unified IP Phone Expansion Module
7914.
Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.1
OL-14620-01
Explanation
When at least one person in a call does not receive audio,
IP connectivity between phones is not established. Check the
configurations in routers and switches to ensure that
IP connectivity is properly configured.
default to using the TFTP server to download firmware. Access
the log messages stored on the remote logging machine to help
debug the peer to peer image distribution feature.
Note
If you are having problems getting CVTA to work, make sure
that the PC Port is enabled, and that CDP is enabled on the PC
port.
Table 9-3 provides general troubleshooting information for the
Cisco Unified IP Phone Expansion Module 7914.
Solution
Verify that all of the cable connections are correct.
Verify that you have power to the Cisco Unified IP Phone
Expansion Module 7914
These log messages are different than the log messages
sent to the
phone log.
9-17