[SIPForum-discussion] Why the From and To headers are swapped when building SIP BYE to terminate the call?

[Ravi Ranjan Sinha]

Hello,

Within the same dialog (initiated by A), any new  request sent by B will have To & From interchanged.

Regards,
Ravi SINHA
Société Aricent - Prestataire du Groupe SFR
DGRE / Direction Intégration Validation et Bout-en-Bout/CoreMobile
T : 01 71 08 05 50
ravi-ranjan.sinha.prestataire at sfr.com<mailto:ravi-ranjan.sinha.prestataire at sfr.com>
ravi.sinha at aricent.com<mailto:ravi.sinha at aricent.com>
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________________________________
From: discussion-bounces at sipforum.org [discussion-bounces at sipforum.org] On Behalf Of ashok.pitambar at wipro.com [ashok.pitambar at wipro.com]
Sent: Tuesday, April 27, 2010 4:43 PM
To: discussion at sipforum.org; ashok.pitambar at wipro.com
Cc: sunil.bhagat at wipro.com
Subject: [SIPForum-discussion] Why the From and To headers are swapped when building SIP BYE to terminate the call?

Hi All,

 Considering the scenario where the receiver end or called party is terminating the SIP call , why the  From and To headers are swapped when building SIP BYE?
Is it because that session or stack wants to know the who exactly terminated the call?And might be useful in conference calls to know the source of termination.
Please share your thoughts on this.

Regards,
Ashok


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