Well, the full text of that section refers to media failure, so I would assume that it is not so relevant to situations involving just "a little congestion":
The behavior of a UA on detection of media failure is a matter of local policy. However, automated generation of re-INVITE or BYE is NOT RECOMMENDED to avoid flooding the network with traffic when there is congestion. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: 09 August 2005 07:28 To: [email protected] Subject: [Sip-implementors] How to exchange mid-call infomation between twoUAs in a session? Quote from "14 Modifying an Existing Session" in RFC3261: "However, automated generation of re-INVITE or BYE is NOT RECOMMENDED to avoid flooding the network with traffic when there is congestion." Is it OK to change the parameters of a dialog using such automated generation of re-INVITE? >Hi! >There is a problem, I need a help. > >In a session, if a UA found there is a little congestion in the IP >network, and it want to modify the initial parameters of session to low >the rate of RTP by changing codec as to keep call on, then there may be a >negotiation between two UAs. > >The problem is how to exchange such mid-call infomation between two UAs in a >session? >INFO is designed to carry mid-call information along the SIP signaling >path during the session, but not used to change the state of SIP calls, or >the parameters of the sessions SIP initiates. > >"In addition, the SIP re-INVITE can be used during a session to change >the characteristics of the session. This is generally to change the >properties of media flows related to the session or to update the SIP >session timer." > >What's good method? > >Thanks for any advice and suggestion! --------------------------------- DO YOU YAHOO!? 雅虎免费G邮箱－中国第一绝无垃圾邮件骚扰超大邮箱 _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
