Hello, On Tue, Jan 29, 2019 at 11:21:01AM -0500, Paul Kyzivat wrote:
> 5.13 says: "Attributes MUST be registered with IANA", so why do you > say this isn't illegal? Upon reflection, you are certainly correct. I suppose the notion of legality I had in mind was implicitly to do with grammatical validity / request intelligibility rather than policy. So, if the attribute is not registered and if the foregoing applies to unsupported but registered attributes, and is therefore illegal, then, in the context of one of those acrimonious "how dare you say I'm not following the standards?" disputes, does this--in any _reasonable_ way, taking purely political phenomena out of it--open the door to the receiver/answerer vendor arguing that an endpoint making use of an unregistered attribute (that is to say, illegally so) is not justified in expecting predictable or standards-prescribed results in the answer? -- Alex -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
