> -----Original Message----- > From: Bob Penfield [mailto:[EMAIL PROTECTED] > Sent: 15 October 2008 16:12 > To: Elwell, John; Christer Holmberg; Juha Heinanen; > [email protected]; Paul Kyzivat; Dean Willis > Subject: RE: [Sip] Dual registration without Outbound > > > > >-----Original Message----- > >From: Elwell, John [mailto:[EMAIL PROTECTED] > >Sent: Wednesday, October 15, 2008 4:52 AM > >To: Christer Holmberg; Bob Penfield; Juha Heinanen; > [email protected]; Paul Kyzivat; Dean Willis > >Subject: RE: [Sip] Dual registration without Outbound > > > > > >> -----Original Message----- > >> From: Christer Holmberg [mailto:[EMAIL PROTECTED] > >> Sent: 15 October 2008 09:32 > >> To: Elwell, John; Bob Penfield; Juha Heinanen; [email protected]; > >> Paul Kyzivat; Dean Willis > >> Subject: RE: [Sip] Dual registration without Outbound > >> > >> > >> Hi, > >> > >>>It might well be the same software stack from the IP layer or the > >>>transport layer upwards, but logically it acts as two UAs > (with some > >>>application software at the top to bind the two together). > >>>At least from the proxy perspective it looks like two UAs. > Viewing it > >>>your way is perhaps also valid (but requires a minor change to > >>>sip-outbound). > >> > >> And, if I understood correctly, that is the change Juha has > >> been asking > >> for :) > >[JRE] Exactly. But viewing it my way possibly requires less change to > >sip-outbound, since much of it talks about one instance ID > per UA (e.g., > >section 3.1). > > > >Whichever way we view it, the following statement in 4.1 seems to be > >problematic: > >"Instance ID MUST NOT change as the device moves from one network to > > another." > > If the UA uses the interface's MAC address to generate the > instance-id, it would not change when you move between networks. [JRE] I think Dean already answered this. If the instance ID is derived from the MAC address, then when moving between networks employing a different MAC technology, by definition the instance ID will change.
John _______________________________________________ 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
