Re: [Sip] 200 OK in calling state for INVITE client transaction

Vin Sharma <vin.sharma@tcs.com> Wed, 09 January 2008 12:36 UTC

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From: Vin Sharma <vin.sharma@tcs.com>
To: "Sudhir Kumar Reddy" <t.sudhirkumar@gmail.com>
Subject: Re: [Sip] 200 OK in calling state for INVITE client transaction
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Hi Sudhir,

ACK must contain the same To- tag as recevied in 200 OK for invite, 
because to-tag is used to identify dialog for which this ACK is received.

Regards,
Vinay Sharma
Tata Consultancy Services
Mailto: vin.sharma@tcs.com
Website: http://www.tcs.com
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Experience certainty.   IT Services
                        Business Solutions
                        Outsourcing
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"Sudhir Kumar Reddy" <t.sudhirkumar@gmail.com> 
12/21/2007 09:50 AM

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sip@ietf.org
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Subject
[Sip] 200 OK in calling state for INVITE client transaction






Hi All,

when an INVITE client transaction is in the Calling state, on receipt of 
Success (200 OK) response. As per RFC 17.1.1.2(Figure 5: INVITE client 
transaction), the 2xx response MUST cause the client transaction to enter 
the "Terminated" state. But, I'm not sure what would be To_Tag in 
generating ACK for that 200 OK. 

Any response is highly appericated.

Thanks,
Sudhir_______________________________________________
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