From: Paul Kyzivat <[EMAIL PROTECTED]>

   I'm fine with spinning it this way. It avoids using the *term* B2BUA, 
   but it still is talking about a B2BUA since it is talking about a UA 
   that has received a response from downstream of itself. So we are 
   playing political correctness gavmes. But I'm ok with that.

More importantly, the rule I suggest handles proxies, UAs, B2BUAs,
gateways, etc. *uniformly*.  (I use the term "agent" for "all devices
which send and receive SIP".)  There's no point attempting to make
general statements about the consequences of the rule for particular
classes of devices, as that only risks making a mistake by overlooking
unusual cases.  The rule states exactly when a 199 should be sent.

Dale
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