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Re: [Sipping] Summary of Closing the offer/answer rollback issue?

To: sipping <sipping at ietf.org>
Subject: Re: [Sipping] Summary of Closing the offer/answer rollback issue?
From: OKUMURA Shinji <shin at softfront.co.jp>
Date: Mon, 02 Mar 2009 18:43:49 +0900
Cc: Gonzalo Camarillo <gonzalo.camarillo at ericsson.com>, Christer Holmberg <christer.holmberg at ericsson.com>
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References: <CA9998CD4A020D418654FCDEF4E707DF0B5C93E6 at esealmw113.eemea.ericsson.se> <OF2265BF35.C1503B83-ON4825756D.00275FB1-4825756D.0027A58C at zte.com.cn> <CA9998CD4A020D418654FCDEF4E707DF0B63B42F at esealmw113.eemea.ericsson.se>

Hi,

The following table describes my understanding.
Is this right?

signaling            | O/A state                      | media in use
---------------------+--------------------------------+--------------
init-INVITE/200/ACK  | audio1(met)                    | audio1
re-INVITE/183-rel    | audio2(notmet)                 | audio1
(PRACK/200OK)        | audio2(met)    +video1(notmet) | audio2
UPDATE/200OK         | audio2(met)    +video1(met)    | audio2+video1
UPDATE/200OK         | audio2(met)    +video2(notmet) | audio2+video1
4xx/ACK              |                                |
  Gonzalo's proposal | audio2         +video1         |
  Gao's proposal     | audio1         +video1(?)      |


Regards,
Shinji

Follow-Ups:
- Re: [Sipping] Summary of Closing the offer/answer rollback issue?
  - From: Ian Elz
- [Sipping] 答复: Re: Summary of Closing the offer/answer rollback issue?
  - From: gao . yang2
- [Sipping] 答复: Re: Summary of Closing the offer/answer rollback issue?
  - From: gao . yang2

References:
- Re: [Sipping] Summary of Closing the offer/answer rollback issue?
  - From: Christer Holmberg
- [Sipping] 答复: RE: RE: RE: Re: Summary of Closing the offer/answer rollback issue?
  - From: gao . yang2
- Re: [Sipping] Summary of Closing the offer/answer rollback issue?
  - From: Christer Holmberg

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