Hi, I don't think the draft forbids you from using 4xx to re-INVITE, but it explains the disadvantage of doing so if you have committed changes. Regards, Christer ________________________________ From: sipping-bounces@xxxxxxxx [mailto:sipping-bounces@xxxxxxxx] On Behalf Of gao.yang2@xxxxxxxxxx Sent: 4. maaliskuuta 2009 10:08 To: Gonzalo Camarillo Cc: sipping-bounces@xxxxxxxx; sipping Subject: 答复: Re: 答复: Re: 答复: Rollback issue: a proposal I think I explained why I can use 4xx of Re-INVITE, without making anything ambiguously. The point is that do you agree that later UPDATE/200OK commit the target refresh. Gonzalo Camarillo <Gonzalo.Camarillo@xxxxxxxxxxxx> 2009-03-04 15:46 收件人 gao.yang2@xxxxxxxxxx 抄送 sipping-bounces@xxxxxxxx, sipping <sipping@xxxxxxxx> 主题 Re: 答复: Re: 答复: Rollback issue: a proposal Hi, > [Gao] I just wanted to say if UPDATE/200OK committed the target refresh, > it should be free for 4xx of Re-INVITE. I insist. You should re-read the draft. It explains why you should not use 4xx response to cancel changes. The advantage of the approach in the draft is that it does not require normative changes to already implemented specs. It is more a BCP kind of spec. That is why its backwards compatibility properties are good. Cheers, Gonzalo -------------------------------------------------------- ZTE Information Security Notice: The information contained in this mail is solely property of the sender's organization. This mail communication is confidential. Recipients named above are obligated to maintain secrecy and are not permitted to disclose the contents of this communication to others. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the originator of the message. Any views expressed in this message are those of the individual sender. This message has been scanned for viruses and Spam by ZTE Anti-Spam system. _______________________________________________Sipping mailing list https://www.ietf.org/mailman/listinfo/sippingThis list is for NEW development of the application of SIPUse sip-implementors@xxxxxxxxxxxxxxx for questions on current sipUse sip@xxxxxxxx for new developments of core SIP
