Hi Gaurav, The m line is telling that the UA can handle and prepared to accept the following media types.
So, in this case, the UA says it can be accepting both form of telephone events. Thanks, Neel. -----Original Message----- From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of Gaurav Khare Sent: Wednesday, June 24, 2015 8:29 AM To: Sip-implementors Subject: [Sip-implementors] Multiple telephone-event in "m" line Hi, I have a SIP client sending below SDP ... m=audio 8178 RTP/AVP 96 97 98 99 100 a=rtpmap:96 AMR-NB/8000 a=fmtp:96 mode-set=0,1,2;mode-change-period=2;mode-change-capability=2;mode-change-neighbor=1;max-red=0 a=rtpmap:97 AMR-WB/16000 a=fmtp:97 mode-set=0,1,2;mode-change-period=2;mode-change-capability=2;mode-change-neighbor=1;max-red=0 a=rtpmap:98 AMR-WB/16000 a=fmtp:98 mode-set=0,3,4;mode-change-period=2;mode-change-capability=2;mode-change-neighbor=1;max-red=0 a=rtpmap:99 telephone-event/8000 a=rtpmap:100 telephone-event/16000 a=fmtp:98 0-15 ... Now please let me know which of the telephone-event payload should my SIP server select considering 1. I select AMR-NB (PT=96) 2. I Select AMR-WB (PT=98) Is there any dependency of clock frequency of telephone-event on the selected audio codec. Thanks, Gaurav Khare ________________________________ DISCLAIMER: The information in this message is confidential and may be legally privileged. It is intended solely for the addressee. Access to this message by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, or distribution of the message, or any action or omission taken by you in reliance on it, is prohibited and may be unlawful. Please immediately contact the sender if you have received this message in error. Further, this e-mail may contain viruses and all reasonable precaution to minimize the risk arising there from is taken by OnMobile. OnMobile is not liable for any damage sustained by you as a result of any virus in this e-mail. All applicable virus checks should be carried out by you before opening this e-mail or any attachment thereto. Thank you - OnMobile Global Limited. _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
