[SIPForum-discussion] How to handle retransmission of SIP packets

[Sam]

Hi NIkhil,


If SIP server is getting multiple 200Ok in case of forking the it will
accept the first one and drop down the latter.
Its same with INVITE it will accept the first and send back 200OK detecting
C-seq,and once the T4 is fired it terminates the transactions.


Regards
Samir



On Fri, Feb 26, 2010 at 12:12 PM, Nikhil Devyalayam <
nikhil at panterranetworks.com> wrote:

> Hi all
>     If any SIP packet got retransmitted because of some reason , do we
> need to respond for every retransmitted packet or just accept one and
> ignore others? Example: If any SIP server got same PUBLISH packet two
> times which is retransmitted,do we need to send back 200 OK for both ,or
> send 200 OK for one and ignore the second.? Please help me on this...
>
> Thanks
> Nikhil
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