> -----Original Message-----
> From: Arunachalam Venkatraman [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, May 29, 2001 2:40 PM
> To: Jonathan Rosenberg; SIP Implementors
> Subject: RE: [Sip-implementors] Unsent Reliable Provisional Responses
> after final response
>
>
> Jonathan
> When I said UAS receives provisional responses, I meant to
> say the UAS stack
> is asked by the UAS application to send provisional
> responses. The confusion
> was unfortunate.
>
> The question is this -
>
> What is an UAS SIP stack to do if it receives requests from the UAS
> application to send multiple provisional responses reliably
> and the call is
> answered before the first PRACK is received and the 200 is
> to be sent by
> the UAS application.
> What should be done with the unsent provisional responses
> that are queued
> pending the receipt of the first PRACK.
This is an issue for your stack interface. When the application requests
reliable provisional responses, it can do so either in a "priority" way,
which means that these should definitely be sent, even if the call is
answered, or in a "non-priority way", which means a call answer should
discard the unsent reliable provisionals. The app can decide which case is
needed. The behavior in either case for the stack is clear. You send any
priority provisionals before sending the 200.
-Jonathan R.
---
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.jdrosen.net PHONE: (973) 952-5000
http://www.dynamicsoft.com
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