[EMAIL PROTECTED]">## Sorry I may have missed the discussion on this, but could you please send me a link to it or a brief explanation of reasons for not using INFO for sending DTMF digits.1. Discussion of using INFO for sending DTMF digits has been discussed ad
nauseum. The answer is "don't do it".
Regards,
Sanjay.
[EMAIL PROTECTED]">
2. I don't think anyone planned on sending VoiceXML in the body of a SIP
message. They are too big, and it essentially breaks VoiceXML semantics
(VoiceXML assumes http).
3. Media server vendors *do* use INFO for simple IVR operations. That also
has been discussed ad nauseum. It works, follows the semantics for INFO,
and, as Bert points out, is interoperable only if standards are followed.
There is not a standard in the IETF (yet). However, there is a standard in
the ISC. See <http://www.softswitch.org>. Vendors that follow that
standard do interoperate.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:sip-implementors-a [EMAIL PROTECTED]]On Behalf Of Bert
Culpepper
Sent: Wednesday, July 24, 2002 2:08 PM
To: Aditya
Cc: [EMAIL PROTECTED]
Subject: Re: [Sip-implementors] Sip INFO method
I believe it should be noted that the two examples below are not
described in any IETF RFC or I-D (that I'm aware of). And SIP user
agents that do these things have little (if any) chance of operating
with other user agents (wrt the information carried in INFOs).
Regards,
Bert
Aditya wrote:INFO is useful when interacting with a SIP
media server (IVR).
1.
Opeartions like - Playing Message/Recording Messages
etc can be done with INFO - few vendors use VoiceXML
in the body of INFO method to send/receive relevant
info (Message file location, mode to play announcement
in etc).
2.
INFO is used to pass dtmf digits collected.
One way it is done is to pass the digits collected in
the body and change the Content-Type to indicate the
same.
-AD
--- Bert Culpepper <[EMAIL PROTECTED]> wrote:The I-D is now a RFC, see
http://www.ietf.org/rfc/rfc2976.txt?number=2976
As far as standardized uses for INFO, The only use
I'm aware of is
described in section 4.6 ofhttp://www.ietf.org/internet-drafts/draft-ietf-sipping-isup-04.txtRegards,
Bert
Jack W. Lix wrote:Hi,
I have been reviewing the SIP INFO method. Itprovides a generic way tosend additional information to the peer. Thisinformation is of little useunless the far end is expecting it and caninterpret it.So, is anyone using this method and, if so, forwhat information?A bit of research shows that there is an draftdescribing how to send ISUPmessages using the INFO method. More researchshows that I cant even findthe SIP INFO draft. Has this expired or am I justblind?Any status of the INFO method and how it's usedwould be appreciated.Thanks,
Jack W. Lix
[EMAIL PROTECTED]
Wind River Systems
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