I agree with Jonathan - this is the right way to go.
Spencer
I didnt get a chance to say this at the mike.
You *cannot* change the BNF for the call-id. If you did, you might end
up with the following problem:
A new UA gets built, compliant to this update. It is one of these
'aggressive parsing' UAs. It rejects any message which is not compliant
to the BNF. An older, normal RFC-3261 compliant UA sends a call-id which
includes the @-sign.
According to the BNF of this updated 3261, and based on the strictness
of this aggressive-parsing UAs, it rejects that request as non-compliant.
As such, you need to keep the BNF, but change the normative language
such that an endpoint MUST NOT include the [@ host] but MUST be prepared
to receive it.
-Jonathan R.
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