Cisco 7925G Administration Guide - Page 213

Chapter 10 Troubleshooting the Cisco Unified Wireless IP Phone 7925G General Troubleshooting Information Table 10-3 Cisco Unified Wireless IP Phone Troubleshooting Tips (continued) Summary Explanation Battery life is shorter than specified An unstable RF environment can cause the phone to remain in active mode because it is constantly seeking an AP. This reduces the battery life considerably. When leaving an area of coverage, shut down the phone. Higher phone transmit power can affect battery life. To maximize idle time on the phone and conserve battery life, you need to optimize the registration time so the phone can go into power save mode more often. Phone call cannot be established 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 Cisco Unified Communications Manager service is running on the Cisco Unified Communications Manager server. 2. Both phones are registered to the same Cisco Unified Communications Manager. 3. Audio server debug and capture logs are enabled for both phones. If needed, enable Java debug. Call established with the iLBC protocol does Call statistics display does not show iLBC as the receiver/sender codec. not show that the iLBC codec is being used 1. Check the following using the Cisco Unified Communications Manager administration pages: - Both phones are in the iLBC device pool. - The iLBC device pool is configured with the iLBC region. - The iLBC region is configured with the iLBC codec. 2. Capture a sniffer trace between the phone and Cisco Unified Communications Manager and verify that SCCP messages, OpenReceiveChannel, and StationMediaTransmit messages have media payload type value equal to 86. If so, the problem is with the phone; otherwise the problem is with the Cisco Unified Communications Manager configuration. 3. Enable audio server debug and capture logs from both phones. If needed, enable Java debug. Related Topics • Logging Information for Troubleshooting, page 10-17 • General Troubleshooting Information, page 10-14 Logging Information for Troubleshooting The following options can help you gather troubleshooting information: • Using a System Log Server, page 10-18 • Using the Trace Logs on the Unified IP Phone, page 10-18 OL-15984-01 Cisco Unified Wireless IP Phone 7925G Administration Guide for Cisco Unified Communications Manager 7.0(1) 10-17