[asterisk-dev] SDP version

[Raj Jain]

Quoting section 8 of RFC 3264:

   Nearly all aspects of the session can be modified.  New streams can
   be added, existing streams can be deleted, and parameters of existing
   streams can change.  When issuing an offer that modifies the session,
   the "o=" line of the new SDP MUST be identical to that in the
   previous SDP, except that the version in the origin field MUST
   increment by one from the previous SDP.


On Mon, Jul 7, 2008 at 5:48 PM, Dmitry Andrianov <dimas at dataart.com> wrote:
> Can you point me to RFC + section?
>
> -----Original Message-----
> From: asterisk-dev-bounces at lists.digium.com [mailto:asterisk-dev-bounces at lists.digium.com] On Behalf Of Kevin P. Fleming
> Sent: Tuesday, July 08, 2008 1:28 AM
> To: Asterisk Developers Mailing List
> Subject: Re: [asterisk-dev] SDP version
>
> Dmitry Andrianov wrote:
>
>> The question is: does some SIP/SDP specification state that client MUST always change SDP version on T38 switchover? In this case it would be clearly a Kapanga bug which I will report to them. However I cannot find documentation which states that.
>
> It has nothing to do with T.38 at all; the SDP version MUST be changed
> if any of the media streams are changed. Changing codecs/formats is
> clearly a media stream change.
>
> --
> Kevin P. Fleming
> Director of Software Technologies
> Digium, Inc. - "The Genuine Asterisk Experience" (TM)
>
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