[SIPForum-discussion] Query for Time T4

[Vijay Tiwari]

Hello Lakhan

it can not be 408. it should be 481 Call leg does not exist and if its reply
481 Call leg does not exist then its okay.

And in  sip response: number have signification not words. if i config like
that

200 failed "it means call success not failed."

Thanks
Vijay


On Fri, Jan 8, 2010 at 11:13 AM, lakhan patel <lakhan.p at gmail.com> wrote:

> Hi All,
>
> I have doubt about T4 Timer and what happen if any dialog is in terminated
> state and other side tries to communicate with previous dialog which was
> terminated?
>
> After INVTE from A to B, B sends *404 Not found* and B received *ACk *for
> *404* but when A-side receive *404 *and send *ACK *for *404 *Call goes in
> *Confirm* state and after *5second(T4 timer fires) *it goes under *Terminated
> *state and after that if we are sending Re-send *ACK *for *404 *it should
> reply with *408 Call leg does not exist*.
>
> *Can Any body tell me is it correct call flow or not?*
>
>
>
>
> --
> Thanks & Regards
> Shivlakhan Patel
> Email: lakhan.p at gmail.com, lakhan.p at hotmail.com
> IBM India Private Ltd. Bangalore
> Contact: +91-9902791177
>
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