Re: DTMF & SIP

Jonathan Rosenberg <jdrosen@dnrc.bell-labs.com> Thu, 08 July 1999 03:00 UTC

Message-ID: <37841446.AB50AA79@dnrc.bell-labs.com>
Date: Wed, 07 Jul 1999 23:00:22 -0400
From: Jonathan Rosenberg <jdrosen@dnrc.bell-labs.com>
Organization: Bell Laboratories
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To: Jacob Avraham <jacoba@mediagate.co.il>
CC: MMUSIC list <confctrl@ISI.EDU>
Subject: Re: DTMF & SIP
References: <004801bec87c$ed59fc70$7ac05ac2@mediagate>
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This is one of the proposed uses of the INFO method, documented in:

http://www.ietf.org/internet-drafts/draft-ietf-mmusic-sip-info-method-00.txt

Whether or not its actually a good idea to carry DTMF out of band is a
good question... 

-Jonathan R.

Jacob Avraham wrote:
> 
> Is there any mechanism in SIP to transfer DTMF (not in the RTP stream)
> during the call? Or, if this is outside the scope of SIP, what companion
> protocol is used to do that?
> 
> Thanks,
> 
> Jacob Avraham
> Mediagate
> 
> ---------
> This message came from the IETF IPTEL Working Group Mailing List.

-- 
Jonathan D. Rosenberg                       Lucent Technologies
Member of Technical Staff                   101 Crawfords Corner Rd.
High Speed Networks Research                Holmdel, NJ 07733
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EMAIL: jdrosen@bell-labs.com
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DTMF & SIP Jacob Avraham
Re: DTMF & SIP Jonathan Rosenberg
Re: DTMF & SIP Scott Petrack