Hi, There is any standard/RFC for this? Because my system only accept telephone-event packet and drop all in-band DTMF when I use SDP as below and I'm not sure it is correct.
Thanks, Anh -----Original Message----- From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of My Gmail Sent: Saturday, October 22, 2016 11:23 AM To: Kapila <kapila.kap...@gmail.com> Cc: sip-implementors@lists.cs.columbia.edu Subject: Re: [Sip-implementors] DTMF digits dupplicate issue Yes, its fine. The message mention indicates that both party support both codecs. Pcmu can be used for both audio and dtmf and 101 only for dtmf. Thanks and Regards Dheeraj Kumar Sent from iPhone > On 22-Oct-2016, at 9:02 AM, Kapila <kapila.kap...@gmail.com> wrote: > > Hi all, > > Is it allowed to transmit dtmf in inband audio as well as in dynamic > payload type ? > > in a recent deployment, we've noticed that Vendor X device sends the > dtmf in such way. > The call scenario is a simple call that SDPs offers are, > > UAC: Media Attribute (a): rtpmap:0 PCMU/8000, Media Attribute (a): > rtpmap:101 telephone-event/8000 > > > UAS: Media Attribute (a): rtpmap:0 PCMU/8000, Media Attribute (a): > rtpmap:101 telephone-event/8000 > > > Thanks > Kapila > _______________________________________________ > 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 _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
