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.
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.
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.