Subject: [Sipping] SIP DTMF

From: "wendy" <[email-masked]>
Date: Wed, 14 Jan 2004 11:37:58 +0900

Hello all, 

Who can tell me whether there is a RFC or I-D on DTMF in SIP which is still not expired?
I remember someone proposed using SIP INFO method for DTMF one or two years ago.
Is the DTMF relay implemented only by RTP now?

Regards,
Wendy

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