Hi,
This ACK for final error responses (4xx-6xxx) which has generated by
the transaction layer has to use the same address same address, port, and
transport to which
the original request was sent. But the ACK for successful 200 Ok response
has generated by the TU layer of the stack which supposed to use the contact
address from 200 OK response.
Thanks & Regards,
Srinivas CH,
Huawei Technologis India Pvt Ltd,
7th Floor Leela Palace,
Airport Road, Bangalore-8,
Contact: (Off) 080-41117676 ext: 7023 (Mob) +919731316362.
This e-mail and attachments contain confidential information from HUAWEI,
which is intended only for the person or entity whose address is listed
above. Any use of the information contained herein in any way (including,
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prohibited. If you receive this e-mail in error, please notify the sender by
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-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Vivek
Gupta
Sent: Thursday, June 05, 2008 3:41 PM
To: sip-implementors@lists.cs.columbia.edu
Subject: [Sip-implementors] FW: Change of transport type in 2XX response
-----Original Message-----
From: Vivek Gupta
Sent: Thursday, June 05, 2008 3:32 PM
To: '[EMAIL PROTECTED]'
Subject: RE: [Sip-implementors] Change of transport type in 2XX response
Following is the text from RFC 3261 [page 126]:
The ACK MUST be sent to the same address, port, and transport to which
the original request was sent.
-----Original Message-----
From: srinivas [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 05, 2008 1:57 PM
To: Vivek Gupta
Subject: RE: [Sip-implementors] Change of transport type in 2XX response
UAC has to send the ACK to contact address which it has received in 200
OK
response for the Invite request.
Thanks & Regards,
Srinivas CH,
Huawei Technologis India Pvt Ltd,
7th Floor Leela Palace,
Airport Road, Bangalore-8,
Contact: (Off) 080-41117676 ext: 7023 (Mob)
+919731316362.
This e-mail and attachments contain confidential information from
HUAWEI,
which is intended only for the person or entity whose address is listed
above. Any use of the information contained herein in any way
(including,
but not limited to, total or partial disclosure, reproduction, or
dissemination) by persons other than the intended recipient's) is
prohibited. If you receive this e-mail in error, please notify the
sender by
phone or email immediately and delete it!
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Vivek
Gupta
Sent: Thursday, June 05, 2008 12:29 PM
To: sip-implementors@lists.cs.columbia.edu
Subject: [Sip-implementors] Change of transport type in 2XX response
Hi,
Say, the UAS changes its contact details in the contact header of 200 OK
response to an initial INVITE. Shall UAC send out the ACK to the
original contact to which the initial INVITE was sent or to the updated
contact address?
With regards,
Vivek Gupta
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