Resolving Video Channel Issues - RADVision SCOPIA 400 User Manual

Resolving Video Channel Issues

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