From: "Hagai Sela (TA)" <[EMAIL PROTECTED]>

   Doesn't the second part of the paragraph contradict the first part? Why
   should the receiving side's implementation accept the large packet if
   the sender is not supposed to send it?

"Be strict in what you send; be liberal in what you accept."

   One last thing - the third party SBC doesn't support TCP.

And since it does not accept large messages via UDP, there is no way
for it to accept large messages at all.  That seems to be quite a
deficiency.

   is TCP support mandatory in RFC 3261?

RFC 3261 section 18:

   All SIP elements MUST implement UDP and TCP.  SIP elements MAY
   implement other protocols.

Dale
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