Re: Is SDP in an unreliable response "the answer" ???

> I don't intend to be strongly particular about the last "MUST NOT".
> 
> But RFC3261 say,
>       o  Once the UAS has sent or received an answer to the initial
>          offer, it MUST NOT generate subsequent offers in any responses
>          to the initial INVITE.  This means that a UAS based on this
>          specification alone can never generate subsequent offers until
>          completion of the initial transaction.
> 
> What do the above statements forbid?

Very little since from UAC perspective, the SDP MUST be ignored.  Thus if UAS places a modified SDP within a subsequent response, it isn't an offer SDP or an updated answer SDP.

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