> -----Original Message-----
> From: Ranjit Avasarala [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 19, 2001 4:44 PM
> To: Harpreet Ahluwalia
> Cc: [EMAIL PROTECTED]
> Subject: Re: [Sip-implementors] clarification regarding no ACK at UAS
> 
> 
> see my comments inline...
> 
> Regards
> Ranjit
> 
> 
> 
> 
> 
> 
> 
> ----- Original Message ----- 
> From: Harpreet Ahluwalia <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, June 19, 2001 10:08 AM
> Subject: [Sip-implementors] clarification regarding no ACK at UAS
> 
> 
> Hi,
> 
> Again refering to dreaft 03 of 2543...
> 
> pg 102, from the "Figure 11: State transition diagram of server for
> INVITE method", it seems that if the UAS does not get an ACK after 7
> retransmissions of 200, it will consider the transaction as completed
> but invitation failed, so it will basically consider the call as not
> established. Am I correct?
> 
> yes the call will be disconnected, 

Right.

> 
> 
>  If that is the case, will he destroy the call
> context immediately or wait for a bye, or send a bye, even 
> though he did
> not get an ACK. I can't find anything in the text which says how to
> proceed in this case. Although the text is very clear for a similar
> scenario for the UAC, it does not say anything for the UAS when 7
> retransmissions of the 200 are done.
> 
> ya the call context will be destroyed by sending a BYE.

Well, it makes sense for the UAS to send a BYE, but I don't think it says
that anywhere. I'll add that. Waiting for a BYE is mostly useless, since if
the ACK is the thing getting lost, the UAC has no way to know that the call
is disconnected. 

-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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