Re: [Sip] Re: Offer by the callee

[Gonzalo Camarillo <Gonzalo.Camarillo@lmf.ericsson.se>]

Hi,

what do you want to put in the offer-2 to be sent that you cannot put in
the answer-1? Understanding the scenario you have in mind would be
helpful...

Gonzalo

Juan-Carlos.Rojas@alcatel.fr wrote:
> 
> Hi Gonzalo,
> 
> Thank you for your answer
> You are right, but sending a held SDP does not prevent the calling party to
> start resource reservation, but only to send media.
> I agree with you that normally, a port number to zero indicates refusal of
> the media stream. Nevertheless, according to Offer/Answer draft, all port
> numbers equal to zero is used also to announce capabilities (section 9),
> and very often it is used to say just "don't use this media".
> 
> What I need here is to give to the answerer the possibility to say "Mr.the
> Offerer, I'm not rejecting your Invite, but I'd like to send you a new
> offer right now, so it is useless to start resource reservation before
> receiving this new offer"
> 
> Best regards
> Juan Carlos

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