Re: [rtcweb] JSEP: Relaxing SDP O/A rules?

Christer Holmberg <christer.holmberg@ericsson.com> Thu, 04 October 2012 09:54 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Harald Alvestrand <harald@alvestrand.no>, "rtcweb@ietf.org" <rtcweb@ietf.org>
Date: Thu, 4 Oct 2012 11:52:55 +0200
Thread-Topic: [rtcweb] JSEP: Relaxing SDP O/A rules?
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Subject: Re: [rtcweb] JSEP: Relaxing SDP O/A rules?
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Hi,

>> This is an expansion on 3264. This is what draft-*-jsep needs to
>> describe clearly, if that is appropriate. I am slowly reaching the
>> conclusion that pranswer is a complication that we don't need,
>> especially since - for those who care about the functionality - it can
>> be replicated by editing offers and answers.
>
> I would be very happy to lose PRANSWER if the SIP guys tell us they can
> successfully gateway to systems using provisional SIP answers (which I
> think is the same thing as the one called "serial forking") without them.

I guess serial forking could be handled using cloning, in the same way as parallel forking.

(Assuming we are going to support cloning, that is - currently it IS described in JSEP)

Regards,

Christer