RE: INFO

And, here's another very old one:

http://quimby.gnus.org/internet-drafts/d
raft-choudhuri-sip-info-digit-00
.txt

Abstract:
   This document describes the mechanism how SIP INFO method
can be used
   by applications that require mid session signaling for
transport and 
   collection of DTMF digits.


Regards,
Mary. 

-----Original Message-----
From: Dale.Worleycomcast.net [mailtoale.Worl
eycomcast.net] 
Sent: Thursday, September 27, 2007 9:39 AM
To: sipietf.org
Subject: Re: [Sip] INFO

   From: Adam Roach <adamnostrum.com>

   On 9/27/07 8:40 AM, Christer Holmberg wrote:
   > I actually DO think there was a DTMF-using-INFO
draft at some point
- a
   > long time ago.

   Really?

ORLY?

 
http://www.google.com/search?q=site%3Ato
ols.ietf.org+%22application%2Fdt
mf%22

   ...and, lest there be any confusion about how far back
that archive
goes:

       h
ttp://tools.ietf.org/html/draft-ietf-mmusic-sip-01

I'm not sure what that search does, but it doesn't turn up
the document
you're looking for, viz.:
http://tools.ietf.org/html/draft-ietf-mmusic-sip-
info-method-00, which
proposed a new SIP method "INFO" to carry DTMF
digits and such
information:

    Abstract

    This document proposes an extension to the Session
Initiation
    Protocol.  This extension adds the INFO method to the
SIP protocol.
    The intent of the INFO method is to allow for the
carrying of
session
    related control information that is generated during a
session.
    Examples of such session control information are
ISUP/ISDN signaling
    messages and DTMF digits used to control telephony
services.

Dale


_______________________________________________
Sip mailing list  https://ww
w1.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use
sip-implementorscs.columbia.edu for questions on current
sip Use
sippingietf.org for new developments on the application of
sip


_______________________________________________
Sip mailing list  https://ww
w1.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use sip-implementorscs.columbia.edu for questions on current
sip
Use sippingietf.org for new developments on the application of
sip

On 9/27/07 10:22 AM, Mary Barnes wrote:
> And, here's another very old one:
>
> http://quimby.gnus.org/internet-drafts/d
raft-choudhuri-sip-info-digit-00
> .txt
>   

Aha! Thanks. I conflated "using application/dtmf"
with "transporting 
DTMF in info", which is a somewhat broader category. My
read is that 
Hadriel and Brian were promoting a specific solution
(application/dtmf), 
which may well not be the case.

So, plodding down that path (and going through the old
arguments 
regarding DTMF in INFO), I am reminded that Jiri had a draft
proposing 
DTMF in INFO using MGCP; and Bert Culpepper mentions this
same approach 
in a later draft.

But, going back to the discussion at hand: Brian and Hadriel
seem to be 
specifically promoting carrying "appliction/dtmf"
in INFO. Since I can 
only guess at their motiviations, I'll leave it to them to
indicate 
whether an "application/vnd.nortelnetworks.digits"
or "message/mgcp" 
approach would make them happy.

/a


_______________________________________________
Sip mailing list  https://ww
w1.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use sip-implementorscs.columbia.edu for questions on current
sip
Use sippingietf.org for new developments on the application of
sip