Correlating multiplex RTP streams to SIP SDP in VoIP












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



























    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

























      0












      0








      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






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Dec 30 '18 at 7:02









      RayneRayne

      3012922




      3012922






















          0






          active

          oldest

          votes











          Your Answer








          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "3"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1388906%2fcorrelating-multiplex-rtp-streams-to-sip-sdp-in-voip%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes
















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Super User!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1388906%2fcorrelating-multiplex-rtp-streams-to-sip-sdp-in-voip%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          flock() on closed filehandle LOCK_FILE at /usr/bin/apt-mirror

          Mangá

           ⁒  ․,‪⁊‑⁙ ⁖, ⁇‒※‌, †,⁖‗‌⁝    ‾‸⁘,‖⁔⁣,⁂‾
”‑,‥–,‬ ,⁀‹⁋‴⁑ ‒ ,‴⁋”‼ ⁨,‷⁔„ ‰′,‐‚ ‥‡‎“‷⁃⁨⁅⁣,⁔
⁇‘⁔⁡⁏⁌⁡‿‶‏⁨ ⁣⁕⁖⁨⁩⁥‽⁀  ‴‬⁜‟ ⁃‣‧⁕‮ …‍⁨‴ ⁩,⁚⁖‫ ,‵ ⁀,‮⁝‣‣ ⁑  ⁂– ․, ‾‽ ‏⁁“⁗‸ ‾… ‹‡⁌⁎‸‘ ‡⁏⁌‪ ‵⁛ ‎⁨ ―⁦⁤⁄⁕