Cisco 7971G-GE - IP Phone VoIP Dépannage et maintenance - Page 18

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Cisco 7971G-GE - IP Phone VoIP Dépannage et maintenance

General Troubleshooting Information

Summary

Peer to peer image distribution fails.

Cisco VT Advantage/ Unified Video Advantage

(CVTA)

Phone call cannot be established

Troubleshooting and Maintenance

Explanation

If the peer to peer image distribution 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 to peer

image distribution feature.

Note

These log messages are different than the

log 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.

The phone does not have a DHCP IP address, is

unable to register to Cisco Unified Communications

Manager, and shows a Configuring IP or Registering

message.

Verify the following:

1. The Ethernet cable is attached.

2. The Cisco CallManager service is running on the

Cisco Unified Communications Manager server.

3. Both phones are registered to the same Cisco

Unified Communications Manager.

4. Audio server debug and capture logs are enabled

for both phones. If needed, enable Java debug.