Darshan Bildikar wrote:
> I don't think that even Method 3 and 4 are OK because they will involve a
> change in the origin line parameter of the SDP and that is not allowed as
> per the RFC.
Which RFC?
I suport Crister's response.
Paul
> BTW, what was the rationale behind not allowing the origin line to change?
> It makes implementing apps like prepaid and CRBT very difficult. Could
> someone please throw some light on this?
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Retesh Chadha
> Sent: Monday, October 02, 2006 5:46 PM
> To: [EMAIL PROTECTED]
> Cc: [email protected]; [email protected]
> Subject: Re: [Sip-implementors] Early media query
>
> Hi Udit
> Of all the methods you have specified, Method 1 and 2 are wrong as per
> the RFC which states that the sdp of all the provisional and 2xx
> response of INVITE should be same if they are present.
>
> Both Method 3 and 4 look fine, with method 4 being better because in
> that case 200 ok for INVITE is only sent when the final negotiation
> (call media) is done.
>
> Hope this helps.
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