[Sipping] Re: Semi Regular Examples draft
Miki HASEBE <hasebe.miki@rdc.east.ntt.co.jp> Mon, 28 March 2005 08:16 UTC
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Date: Mon, 28 Mar 2005 17:12:39 +0900
From: Miki HASEBE <hasebe.miki@rdc.east.ntt.co.jp>
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Cc: sipping@ietf.org, sip-implementors@cs.columbia.edu, koshiko@ceres.ocn.ne.jp
Subject: [Sipping] Re: Semi Regular Examples draft
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Hi Malleswara, Thank you for the comment. I understood the meaning which you pointed out and I think my understanding is same of you. These are my understandings from section 15.1.1 of RFC3261. 1) The session is terminated by the BYE message sending out. 2) The dialog is terminated by receiving the response to the BYE message or a timeout I explain with a figure, such as below: Alice Bob | | | Both Way RTP Media | |<======================>| | | | BYE F1 | |<-----------------------| Session is terminated | | | 200 F2 | |----------------------->| Dialog is terminated. BYE-transaction is | | "Completed" , timer K starts. | | According to this general sequence, after BYE transmission,a client is considered to hold a dialog until it receives response message or timer K expires. When once BYE message is sent, the dialog must be terminated finally. In other words, from description of RFC3261, I think that the end of a dialog is promised to terminate by transmission of BYE message. But it is thought that the dialog does not terminate immediately, the dialog terminate by receiving a response message or timer K expires. Therefore we should need a consideration about the case when a client receives any messages after a dialog complited. is reserved by BYE message until a dialog is completed. For example, the sequence which is needed consideration is reception of the REFER signal. It is shown in 2.4 of a semi-regular draft. When receiving signals, such as REFER which effects on a dialog, after a BYE message transmitted, I think it reasonable to answer so that a dialog may not exist. I want to add a description as discussed above about disappearance of a dialog to a description of section 2.4 of a semi-regular draft. Please point out, if I misunderstood RFC3261. Let me know if you have any other comments to this proposal. Thank you very much for your cooperaqtions. Miki Hasebe, --------------------------------------------------------- Miki HASEBE Research and Development Center NTT-east Corporation Telephone +81 3 5359 5104 Facsimile +81 3 5359 4768 E-mail: hasebe.miki@rdc.east.ntt.co.jp 19-2 Nishi-shinjuku 3-chome Shinjuku-ku Tokyo 163-8019 Japan --------------------------------------------------------- _______________________________________________ Sipping mailing list https://www1.ietf.org/mailman/listinfo/sipping This list is for NEW development of the application of SIP Use sip-implementors@cs.columbia.edu for questions on current sip Use sip@ietf.org for new developments of core SIP
- [Sipping] RE: [Sip-implementors] Semi Regular Exa… Medhavi Bhatia
- [Sipping] Re: [Sip-implementors] Semi Regular Exa… Jun KOSHIKO(Private)
- [Sipping] Re: [Sip-implementors] Semi Regular Exa… Kenneth Ho
- [Sipping] Re: [Sip-implementors] Semi Regular Exa… Malleswara Rao Ankem
- [Sipping] Semi Regular Examples draft Miki HASEBE
- [Sipping] Semi Regular Examples draft Miki HASEBE
- [Sipping] Re: Semi Regular Examples draft Malleswara Rao Ankem
- [Sipping] Re: Semi Regular Examples draft Miki HASEBE
- RE: [Sipping] Semi Regular Examples draft Michael Hammer (mhammer)
- [Sipping] Semi Regular Examples draft Miki HASEBE
- [Sipping] RE: Semi Regular Examples draft Michael Hammer (mhammer)
- Re: [Sipping] RE: Semi Regular Examples draft Malleswara Rao Ankem
- RE: [Sipping] RE: Semi Regular Examples draft Michael Hammer (mhammer)
- Re: [Sipping] RE: Semi Regular Examples draft Charles Eckel
- RE: [Sipping] RE: Semi Regular Examples draft Michael Hammer (mhammer)
- Re: [Sipping] RE: Semi Regular Examples draft Charles Eckel
- [Sipping] RE: Semi Regular Examples draft Miki HASEBE