Currently only H.263 is supported with H.239. You need to add the PluginCodec_MediaTypeExtVideo to the H.261 plugin codec definition to tell h323plus to load it into the H.239 plugin factory. Simon -----Original Message----- From: h323plus-bounces@lists.packetizer.com [mailto:h323plus-bounces@lists.packetizer.com]On Behalf Of Abhishek Rohilla Sent: Wednesday, May 07, 2008 1:15 AM To: h323plus@lists.packetizer.com Subject: [h323plus] Codec Selection in H.239 Extended Video channel Hi everyone I was trying to make a call using H.261 codec and then I opened ExtendedVideoSession. The session opens and closes immediately. I guess it is because the call was established using H.261 codec so it returns from the library, Does anyone have any idea about these.

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Is H.261 plug in supporting extended session or not? Does Extended session use the same codec as selected for main video channel or it can use a different codec. If yes how can we specify a different codec for extended channel?

Thanks Abhishek Rohilla