Troubleshooting the polycom vvx 1500 d phone, Calling, 3 troubleshooting the polycom vvx 1500 d phone –1 – Polycom VVX 1500 D User Manual
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Troubleshooting the Polycom VVX
1500 D Phone
This chapter contains general troubleshooting information to help you solve
any problems you might encounter when you use the Polycom VVX 1500 D
phone in an H.323 environment. The phone can provide feedback in the form
of on-screen error messages, status indicators, and log files for troubleshooting
issues.
For detailed information on error messages, log files, testing the phone
hardware and phone issues—along with likely causes and corrective actions—
refer to the “Troubleshooting” chapter of the latest SIP Administrator’s Guide.
This chapter presents phone issues, likely causes, and corrective actions for the
Polycom VVX 1500 D phone in an H.323 environment. Issues are grouped as
follows:
• Calling
Review the latest Release Notes for the SIP application for known problems and
possible workarounds.
Calling
Symptom
Problem
Corrective Action
The line icon shows an
unregistered line icon.
The phone line is unregistered.
Verify that the appropriate configuration
parameters are set correctly. Verify that
the call server is functioning correctly.
The Polycom VVX 1500 D
selects a lower-quality codec
(H.261) when the called endpoint
also supports H.264 .
The Polycom VVX 1500 D
selects which audio/video codecs
to transmit based on the far-end
endpoint’s order of codecs in
their supported list.
Verify that the appropriate configuration
parameters are set correctly. Check the
value of
voIpProt.SDP.answer.useLocalPrefer
ences
.