Cisco 7975G Administration Manual page 181

Chapter 9 Troubleshooting and Maintenance
Table 9-2
Summary
One-way audio
Peer Firmware Sharing
fails.
Cisco VT
Advantage/Unified
Video Advantage
(CVTA)
OL-12642-01
Cisco Unified IP Phone Troubleshooting (continued)
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
configures.
If the Peer Firmware Sharing fails, the phone will
default to using the TFTP server to download
firmware. Access the log messages stored on the
remote logging machine to help debug the Peer
Firmware Sharing feature.
These log messages are different than the log
Note
messages sent to the phone log.
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.
See Network Configuration Menu, page 4-5
more information.
Cisco Unified IP Phone 7975G Administration Guide for Cisco Unified Communications Manager 6.0
General Troubleshooting Tips
for
9-13