> Does inclusion of parameter user=phone > guarantee that the user part confirms > to rfc 2806 or is it that it may confirm.
There are never any guarantees. The user=phone does indicate that the user part can be parsed into a telephone-subscriber defined within rfc 2806 or the various bis versions. Since the bis versions are not completely backwards compatible with rfc 2806, care should be taken when trying to apply strict conformance rules associated with things not backward compatible. For instance, some products currently add user=phone without conforming to the new bis rule that the telephone-subscriber MUST contain a phone-context if the telephone-subscriber contains a local-number. If you desire to interwork with these products, you should be lenient in what you accept from these products that implemented rfc2806 instead of rfc2806bis. _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
