[SIPForum-discussion] Regarding INVITE time-out

Abhishek Mishra abhishek.mishra at globallogic.com
Thu Aug 9 12:29:18 UTC 2007

Hi Sanil,

> Does this means to just discard the call object?? 
What do you mean by call object here?

If UAC does not receive any final response, then UAC transaction should
be deleted and transaction layer would inform TU about this. If you are
relating the call object with the TU (transaction user) then behavior
would depend upon the type of SIP entity (SIP-Proxy, SIP-Phone etc).

Kind Regards,

On Thu, 2007-08-09 at 09:53, Sanil.RC at aricent.com wrote:
> Hi all, 
> I have a question regarding the UAC behavior when Time-out happens for
> an INVITE ( ie, neither a provisional nor a final response is received
> for this INVITE).
> In this case what is the correct UAC behavior?? 
> As per rfc 3261 section 9.1 Client Behavior
>    " If there is no
>   final response for the original request in 64*T1 seconds (T1 is
>   defined in Section, the client SHOULD then consider the
>   original transaction cancelled and SHOULD destroy the client
>   transaction handling the original request."
> Does this means to just discard the call object?? 
> thanks in advance
> Sanil RC
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