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Convene H263 4Cif conference causing meeting place terminal display transmission not clear.

Publication Date:  2012-09-24 Views:  131 Downloads:  0

Issue Description

8630MCU, 8039 conference terminal convene a HD TV conference with 4 meeting place, find out that two terminals’ image is blur. Image is hard to recognize.

Alarm Information


Handling Process

Using p2p call without MCU, we find out some clear and some not. At this moment we observe and find out some terminals default protocol is H363 4Cif, some are H3644Cif, all 264Cif terminal is normal, log system platform find out the speed rate interval setting is H.363 4CIF, so change to H264 Cif. Convene the conference again, everything come back to normal.

Root Cause

All terminal with same model, same version, conference property is H363 4CIF


If the meeting place rate is below 4M, we suggest set the protocol to H264.