Re: [Sip-implementors] DTMF Event and coded audio packets

2018-03-02 Thread F Yuan
Good Info! Thanks Anh Frank On Thu, Mar 1, 2018 at 10:25 PM, Anh Cao wrote: > As I know, according to RFC4733 section 2.5.1.1: > > If the sender receives an "events" parameter from the receiver, it MUST > restrict the set of events it sends to those listed in the received "events" > paramete

Re: [Sip-implementors] DTMF Event and coded audio packets

2018-03-01 Thread Anh Cao
As I know, according to RFC4733 section 2.5.1.1: If the sender receives an "events" parameter from the receiver, it MUST restrict the set of events it sends to those listed in the received "events" parameter. Both UAC and UAS must use telephone-event for DTMF, your case is invalid. 2018-03-02 5:

[Sip-implementors] DTMF Event and coded audio packets

2018-03-01 Thread F Yuan
Hi All, I have a case that both offer and answer SDPs support the same telephone(DTMF) event with G711 codec, is it possible that called party (answer SDP) uses only encoded G711 audio packet for DTMF instead of using DTMF event although called party included the same DTMF event in answer SDP? Ar