Ok, makes sense as well. I conclude from this discussion, that there are no extension protocols which MUST be coupled with another one in service discovery (i.e. if A then B), although for some they SHOULD (e.g. if urn:xmpp:jingle:transports:ibb:1 then urn:xmpp:jingle:1).
Thanks. -Christian Am 17.03.2015 um 17:19 schrieb Dave Cridland <d...@cridland.net>: > > > On 16 March 2015 at 23:11, Lance Stout <lancest...@gmail.com> wrote: > This one may need to go to Peter for a philosophy question: what is to be > done when an implementation of feature Y MUST support X as a fallback, but > the user chooses to disable X. > > MTI != MTD > > Mandatory To Implement does not mean Mandatory To Deploy - so if Y requires X > as a fallback (or a server MUST implement SCRAM, or whatever) this doesn't > imply that it must be deployed and activated at all times. > > Dave.
