Correlating multiplex RTP streams to SIP SDP in VoIP












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I'm trying to understand more about RTP multiplexing, i.e. where a single RTP session defined by its 5-tuple is used to send more than 1 RTP media streams. I've read that this could happen in cases such as tele-conferencing where there are multiple cameras and all audio/video streams are sent in 1 RTP session. And in such cases, the SDP BUNDLE feature could be used to identify the RTP streams.



My question is do/can we multiplex RTP in VoIP as well, where there are multiple calls from multiple callers and callees? If so, how do we then correlate each of the audio/video streams to the pair of caller and callee? Would there be multiple SDP packets generated due to the multiple calls? How would the SDP look like in this case?










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    I'm trying to understand more about RTP multiplexing, i.e. where a single RTP session defined by its 5-tuple is used to send more than 1 RTP media streams. I've read that this could happen in cases such as tele-conferencing where there are multiple cameras and all audio/video streams are sent in 1 RTP session. And in such cases, the SDP BUNDLE feature could be used to identify the RTP streams.



    My question is do/can we multiplex RTP in VoIP as well, where there are multiple calls from multiple callers and callees? If so, how do we then correlate each of the audio/video streams to the pair of caller and callee? Would there be multiple SDP packets generated due to the multiple calls? How would the SDP look like in this case?










    share|improve this question

























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      0








      I'm trying to understand more about RTP multiplexing, i.e. where a single RTP session defined by its 5-tuple is used to send more than 1 RTP media streams. I've read that this could happen in cases such as tele-conferencing where there are multiple cameras and all audio/video streams are sent in 1 RTP session. And in such cases, the SDP BUNDLE feature could be used to identify the RTP streams.



      My question is do/can we multiplex RTP in VoIP as well, where there are multiple calls from multiple callers and callees? If so, how do we then correlate each of the audio/video streams to the pair of caller and callee? Would there be multiple SDP packets generated due to the multiple calls? How would the SDP look like in this case?










      share|improve this question














      I'm trying to understand more about RTP multiplexing, i.e. where a single RTP session defined by its 5-tuple is used to send more than 1 RTP media streams. I've read that this could happen in cases such as tele-conferencing where there are multiple cameras and all audio/video streams are sent in 1 RTP session. And in such cases, the SDP BUNDLE feature could be used to identify the RTP streams.



      My question is do/can we multiplex RTP in VoIP as well, where there are multiple calls from multiple callers and callees? If so, how do we then correlate each of the audio/video streams to the pair of caller and callee? Would there be multiple SDP packets generated due to the multiple calls? How would the SDP look like in this case?







      audio video streaming voip sip






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      asked Dec 30 '18 at 7:02









      RayneRayne

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