[SIPForum-discussion] DTMF on SIP

[Underwood, Rosa]

RFC 4733 might be able to help you.  For background, you can refer to RFC 2833, which I believe  was obsoleted by RFC 4733.

From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of murali shankar
Sent: Wednesday, September 01, 2010 8:57 PM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] DTMF on SIP


Dear All,

            Please clarify me on the below quries
          1.How to find the DTMF option is accepting while making a call through sip gateway ?
          2.Is there any relation between codec and DTMF signaling?
          3.Will the DTMF will get reverse? i.e if we enter the digit 1234 will it reply as 4321?

Thanks,
Murali


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