PDA

View Full Version : Problems with Video Protocol

leonardotrevisol
08-10-2009, 11:30 AM
Sorry for my english... We have some Polycom VSX 7000A and 8000 in the net... And only three sites we can't connect with H264... Only with H263.... These equipments don't have any problem (SW Version 8.7.1 and 8.5.3)... Can you help us??? Thanks a lot
videojunkie1208
09-10-2009, 09:44 AM
are the sites you are trying to connect to Tandberg?

In my experience Tandberg and polycom don't play nice with H.264 (has to do with the h.239 protocol). When we connect to polycom's we require them to disable h.239. or connect via h.263.
Sean Lessman
09-10-2009, 10:02 AM
are the sites you are trying to connect to Tandberg?

In my experience Tandberg and polycom don't play nice with H.264 (has to do with the h.239 protocol). When we connect to polycom's we require them to disable h.239. or connect via h.263.

This is absolutely not the case - at least not with relatively current software. In the very early days of H.239 (4-5 years ago) there were interop issues but I call Polycoms several times a day interacting with customers etc. No problems.

In the early days of H.264 Polycom tried to be first to market with their own version of H.264 which then named H.264* (asterisk was labelled as pre-standard, and then they just dropped the explanation) which caused interop issues. But all of this should be behind us now.

Sean
videojunkie1208
09-11-2009, 12:27 PM
Unless they are behind in their software updates which never ever happens in the government.... :D

(I talk to a site routinely that is still running 8.x on their MGC100 - crashes whatever call they dial into on my MPS 800 (running j4.5). everytime)

and I consistently have issues with MGC's and my MPS regarding Slave Master setups... Finally set mine to MAster, and make the MGC callers set to slave.