Re: [Sip] Question on Unify draft

Gonzalo Camarillo <Gonzalo.Camarillo@lmf.ericsson.se> Tue, 26 February 2002 16:06 UTC

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Message-ID: <3C7BB604.5DF3A991@lmf.ericsson.se>
Date: Tue, 26 Feb 2002 18:21:24 +0200
From: Gonzalo Camarillo <Gonzalo.Camarillo@lmf.ericsson.se>
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To: "Chen, Xin (Xin)" <xchen2@lucent.com>
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Subject: Re: [Sip] Question on Unify draft
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Hello,

"Chen, Xin (Xin)" wrote:
> 
> In this draft, in figure 4 (solution for One-of-N Codecs problem), it uses
> the a=inactive in the first offer to stop the callee to send media. But is
> it possible that the callee answers the offer by changing the a=inactive to
> a=active and starts to send media immediately?
> 
> If this is possible, then this solution won't work, am I right?
> 

The direction attribute cannot be change in the answer. It has to be the
same as in the offer. See:
http://www.ietf.org/internet-drafts/draft-ietf-mmusic-sdp-offer-answer-01.txt

Regards,

Gonzalo

> Xin Chen
> 
> Lucent Technologies
> Tel: +44 1793 883137
> Mobile: +44 7799 034668
> 
> _______________________________________________
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-- 
Gonzalo Camarillo                    Phone :   +1 212 939 71 71
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_______________________________________________
Sip mailing list  https://www1.ietf.org/mailman/listinfo/sip
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