Sal, It should be possible to express requirements without referring to dialogs. Any reference to dialogs seems to make some assumption about solution. John > -----Original Message----- > From: sipping-bounces@xxxxxxxx > [mailto:sipping-bounces@xxxxxxxx] On Behalf Of Salvatore Loreto > Sent: 03 February 2009 20:03 > To: Paul Kyzivat > Cc: SIPPING; Elwell, John > Subject: Re: > Commentsondraft-loreto-sipping-context-id-requirements-00 > > <snip> > >>> Req A: It must be possible, when establishing a dialog, > to specify > >>> that > >>> it be correlated with one or more already existing dialogs, which > >>> dialogs, at the time they were created, did not need to > specify that > >>> they might be correlated with in the future. > >> [JRE] I don't think this is a valid requirement, because it has a > >> particular class of solutions in mind. In my opinion the basic > >> requirement should be something along the lines of "It > must be possible > >> to establish, modify and clear down a multimedia session > between two > >> parties, one or both of which use different devices for different > >> media." > >> > >> John > > > > I agree with John. > > > > Paul > I agree on the fact that the requirements have to be as > general as possible. > In fact if you read my mail "Correlate sip sessions/dialogs" > you can see > we have already have two requirements that are similar > (almost equal) to > the one suggested by John. > > The requirement in this mail was about the possibility to create the > initial dialog without knowing > in advance whether another dialog will want to correlate with it. > We can generalize it: > > "It must be possible to create a dialog without knowing in advance > whether or not > another dialog will want to correlate with it" > > Maybe it is a redundant requirement but at this stage there are > people that think it should be specified. > > Sal > _______________________________________________ > Sipping mailing list https://www.ietf.org/mailman/listinfo/sipping > This list is for NEW development of the application of SIP > Use sip-implementors@xxxxxxxxxxxxxxx for questions on current sip > Use sip@xxxxxxxx for new developments of core SIP > _______________________________________________ Sipping mailing list https://www.ietf.org/mailman/listinfo/sipping This list is for NEW development of the application of SIP Use sip-implementors@xxxxxxxxxxxxxxx for questions on current sip Use sip@xxxxxxxx for new developments of core SIP
