From: [email protected] [mailto:[email protected]] On Behalf Of W. E. W. Russell Sent: Monday, January 10, 2011 10:13 AM To: [email protected] Subject: [sipx-dev] Need a second bridge for video? All, I tried to get this answer a months ago, but I'll try again. I'm trying to make a video call from one sipXecs to another. After months of work on this, I've narrowed down the issue: It seems as though the sipXbridge/relay will only process one media attribute, not two. The comments in the code seem to imply that you would need a SECOND bridge for the second (video) media. Again, there is no issues with the calls. I have walked through the call flows (Wireshark packet captures) and found no issue except one: the RTP media streams sent from our Polycom VVX1500 phones to the PBX are rejected on sight. This clearly means that the PBX/bridge is not listening on those ports. Simple issue, or so I thought. I could just open up that range of ports and the problem would go away - still no dice. I looked into the code of how the SDP is parsed (SIPUtilities.java, RTPSessionUtilities.java, etc) and kept find references to "one media stream" or "just the first media attribute". So, I ask a very simple question: can the sipXbridge/relay handle BOTH audio & video streams? Just to clarify, the only problem I have with my call is no video - audio is amazing and call control and signalling are responsive. Just one missing piece and I need to know how involved it will be to "create a second bridge" that functions EXACTLY the same way, but handles the video. Please do not ask for configs and packet captures - not because I don't have them, but because I'm asking a development question, not a call troubleshooting question. Thank you very much for your time and patience. -- W. E. W. Russell Member of Technical Staff (System Integration) at incNETWORKS, Inc. Alumni of the University of Florida - Fall 2007 - BS in Computer Science Active Alumni member of Sigma Lambda Beta International Fraternity, Inc. Cell Phone # 732-744-6483 Work Phone # 732-483-1511 Blackberry Pin: 30E9FD36 I can't answer the technical details of your question, but I will add that I have successfully made video calls from one sipXecs system to another via two methods - one was with a softclient, and the other was with a Nortel phone that has video built into it. It's model escapes me right now. On these two sipXecs, we had trunking built between them, and were able to successfully call between them with video and audio.
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