Hi, >>ISTM that the kinds of failures that will result from inappropriate >>use of Require:199 are self limiting. They will break things early in >>interop testing, and be fixed. > >You are refreshingly optimistic. :) Have you read 3GPP specs recently? In theory their behavior should be self-limiting too; but it works in their closed single-vendor environments on day-1, then >breaks on day-2 when the environment grows or another vendor is added. And since the new vendor being added is the one with motivation to make things work, the new vendor is the one that will add 199 >support. Then one day the customer will want to connect their network to others, and boom. > >If we can't think of any legitimate use for an option-tag in Require, why should we allow it?
Because there may be a legitimate use for it tomorrow, or next week, or next year. 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
