Needed, Enable Java Debug - Cisco 7911G - IP Phone VoIP Administration Manual

Chapter 9 Troubleshooting and Maintenance
Table 9-2
Summary
Call established with the iLBC
protocol does not show that the
iLBC codec is being used
Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.0
OL11954-01
Cisco Unified IP Phone Troubleshooting (continued)
General Troubleshooting Tips
Explanation
Call statistics display does not show
iLBC as the receiver/sender codec.
Check the following using the Cisco
1.
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.
Capture a sniffer trace between the
2.
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.
Enable audio server debug and
3.
capture logs from both phones. If

needed, enable Java debug.

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