> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, March 25, 2001 3:24 AM
> To: [EMAIL PROTECTED]
> Subject: [Sip-implementors] question on SDP media negotiation
>
>
>
>
> hi
>
> If A sends an INVITE to B without any SDP, B now sends a 200OK with
> someSDP. If the 200OK contains media that is NOT acceptable to
> A what happens? .Is A supposed to ACK the 200OK?
Yes.
Please, remember the fundamental mantra of sip:
all transactions complete independently
all transactions complete independently
all transactions complete independently
This means that the INVITE transaction has to finish, even if you want to
send a BYE. So, you have to send the ACK.
>If A does send an ACK
> ...what SDP does he send with the ACK?.
It doesn't really matter.
Immediately after
> sending an ACK
> does he send a BYE?(because he doesn't really accept B's
> media)...what is
> the consensus on this issue?
Yes, he would send a BYE.
-Jonathan R.
---
Jonathan D. Rosenberg 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.cs.columbia.edu/~jdrosen PHONE: (973) 952-5000
http://www.dynamicsoft.com
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