What
is the status of
draft-choudhuri-sip-info-digit-00.txt
?
Thanks,
Eran.
Eran Shen
Intel Corporation
Telecommunications and
Embedded Group
P.O Box 58, Migdal Tefen, Israel
Tel:
+972-4-9105020
<mailto:[EMAIL PROTECTED]>
-----Original Message-----
From: Shen, Eran [mailto:[EMAIL PROTECTED]]
Sent: Sunday, March 03, 2002 1:18 AM
To: [EMAIL PROTECTED]
Subject: [Sip-implementors] Out of band DTMFHi,I would like to know where can I find a description of the way to convey out of band DTMF using INFO method?In the INFO rfc2976"- Carrying DTMF digits generated during a SIP session."is all I found.Page 3:"This document proposes that the protocol translator send the
audio/telephone-event MIME type defined in RFC2833 in the body of an
INFO method to the target User Agent, for it to render.The INFO method means: here is some information relevant to the
call. A valid way to handle information in this situation is to
render that information.Under this proposal, a User Agent MUST NOT send signaled digits or
telephone-events using the INFO method if the event was ever
represented as a tone (as media). Only signals originated as pure
signaling MAY generate an INFO method. Failure to heed this
requirement will result in double-detection of digits/events.If INFO is used incorrectly by a pair of PSTN gateways (for
example), the source gateway may detect a digit, send an INFO
request which is lost, and retransmit that request. The target
gateway would send the original in-band tone to the PSTN when the
audio media arrives, later when the INFO arrives, the target gateway
would render the same tone again."Does anyone know of other documents where it is mentioned?Thanks,
Eran.
Eran Shen
Intel Corporation
Telecommunications and Embedded Group
P.O Box 58, Migdal Tefen, Israel
Tel: +972-4-9105020
<mailto:[EMAIL PROTECTED]>
