Cisco 7941G Administration Guide - Page 245

General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module 7914 (SCCP Phones Only

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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 Explanation One-way audio. 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. Peer to peer image distribution fails. 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. Cisco VT Advantage/Unified Video If you are having problems getting CVTA to work, make sure Advantage (CVTA) that the PC Port is enabled, and that CDP is enabled on the PC port. General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module 7914 (SCCP Phones Only) Table 9-3 provides general troubleshooting information for the Cisco Unified IP Phone Expansion Module 7914. Table 9-3 Cisco Unified IP Phone Expansion Module 7914 Troubleshooting Problem Solution No display on the Cisco Verify that all of the cable connections are correct. Unified IP Phone Expansion Module Verify that you have power to the Cisco Unified IP Phone 7914. Expansion Module 7914 Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.1 OL-14620-01 9-17

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9-17
Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.1
OL-14620-01
Chapter 9
Troubleshooting and Maintenance
General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module 7914 (SCCP Phones Only)
General Troubleshooting Tips for the Cisco
Unified IP Phone Expansion Module 7914 (SCCP
Phones Only)
Table 9-3
provides general troubleshooting information for the
Cisco Unified IP Phone Expansion Module 7914.
One-way audio.
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.
Peer to peer image distribution fails.
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.
Cisco VT Advantage/Unified Video
Advantage (CVTA)
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 9-2
Cisco Unified IP Phone Troubleshooting (continued)
Summary
Explanation
Table 9-3
Cisco Unified IP Phone Expansion Module 7914 Troubleshooting
Problem
Solution
No display on the Cisco
Unified IP Phone Expansion Module
7914.
Verify that all of the cable connections are correct.
Verify that you have power to the Cisco Unified IP Phone
Expansion Module 7914