Dear Paul, Thank u for your help.We inserted the DTMF into the RTP audio stream (G.7231). The packets r often lost.
Many people recommend using RFC 2833 . But I wonder how RFC 2833 can insure the reliability transport of DTMF events.I cannot get much from the RFC 2833. Regards, Jade _________________________________________________________________ Original Message: Message: 1 From: "Paul Long" <[EMAIL PROTECTED]> To: "Sip-Implementors \(E-mail\)" <[EMAIL PROTECTED]> Subject: RE: [Sip-implementors] DTMF in SIP Date: Sat, 15 Feb 2003 18:57:54 -0600 Adetya, Use RFC 2833 (http://www.ietf.org/rfc/rfc2833.txt). In your original query, by, "we use RTP to carry the DTMF, but we found that it was not reliable," did you mean that you inserted DTMF into the RTP audio stream as audio or that you have implemented RFC 2833 but found some problem with it? If the latter, what was the problem? Paul _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
