User guide

174 SCOPIA 400/1000 Gateway User Guide
Resolving Video Channel Issues
RESOLVING VIDEO
C
HANNEL ISSUES
This section describes what to do if video channels fail to open on the ISDN or
LAN endpoint.
Video bit rate sent from the LAN side is too
low.
Check the LAN endpoint bearer
capabilities/call rate settings for the
LAN-to-ISDN call.
ISDN Downspeeding occurs due to
dropped ISDN lines.
If the problem recurs, check with the ISDN
provider at both ends of the connection.
If the problem is not resolved, contact
RADVISION Customer Support.
Provide the following information to
RADVISION Customer Support:
 Gateway traces with level 6.
 H.323 stack log.
Possible Causes Verification Steps
Possible Causes Verification Steps
The LAN endpoint or ISDN endpoint does
not support the required video codecs.
At Gateway > Calls> Details check that the
video channels are open to the ISDN and to
the LAN side.
Some of the media modes in the Gateway
configuration are disabled.
At Gateway > Settings > Media Modes
verify that all the relevant video codecs are
checked.
If the problem is not resolved, contact
RADVISION Customer Support.
Provide the following information to
RADVISION Customer Support:
 Gateway traces with level 6.
 H.323 stack log.