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
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