There is no response for a response. So no 481 will be there.

Rohit Jain 
Sent from my iPhone

> On 31-Jul-2017, at 9:31 PM, Prakash K <prakash12...@gmail.com> wrote:
> 
> How response will be sent for response ?
> 
> UA received 200 OK for INVITE which is sent out ,* but 200 OK received is
> with different call-id (wont match the context)*
> 
>> On 31 July 2017 at 21:07, Asim Sulaiman <asim.sulai...@emircom.com> wrote:
>> 
>> Dear Prakash,
>> 
>> I guess you will get 481 transaction does not exist.
>> 
>> 
>> Regards,
>> Asim Sulaiman
>> 
>> -----Original Message-----
>> From: sip-implementors-boun...@lists.cs.columbia.edu
>> [mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of
>> Prakash
>> K
>> Sent: Monday, July 31, 2017 7:27 PM
>> To: sip-implementors@lists.cs.columbia.edu
>> Subject: [Sip-implementors] Processing of Standalone 200 OK response for
>> INVITE ["200OK received by UA with different Call-id which is not in
>> context"]
>> 
>> What would be the behavior of UA when 200 OK received which is not matching
>> the dialog
>> 
>> "200OK received by UA with different Call-id which is not in context"
>> 
>> 
>> I see the following snippet in RFC 3261 which says UA should create dialog.
>> Wont this end up in acknowledging the hacking?
>> 
>>  If the dialog identifier in the 2xx response matches the dialog
>>   identifier of an existing dialog, the dialog MUST be transitioned to
>>   the "confirmed" state, and the route set for the dialog MUST be
>>   recomputed based on the 2xx response using the procedures of Section
>>   12.2.1.2.  *Otherwise, a new dialog in the "confirmed" state MUST be
>>   constructed using the procedures of Section 12.1.2.*
>> 
>> 
>> does this mean UA should generate ACK & immediately followed by BYE should
>> be triggered?
>> 
>> 
>> --
>> Thanks
>> Prakash K
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> 
> 
> -- 
> Thanks
> Prakash K
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