>>I don't know what openser does, but I DO know about edge proxies that > set the registration timer to a short value in order to use the > registration requests as "keep-alives", which is a >>very "heavy" method. > >we discussed this already. it is the responsibility of the UA, not a proxy, to use small reg int if ob proxy does not support CRLF keepalives.
That is not specified anywhere, and that is not general behavior. The registration interval offered by the UA may be something which has been provided by the operator/service provider/internet provider. And, the UA may not even know whether it is behind a NAT or not - at least not before it has sent some SIP request, after which it may check the Via etc. Also, please also remember that one use-case in the draft is non-registration calls, in which case the register refresh method can't be used in the first place. Regards, Christer _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip
