if a proxy received a request
such as the following
BYE sip:[EMAIL PROTECTED]
SIP/2.0
Route:
<sip:p4.domain.com;transport=TCP;lr>
Route: <sip:p3.middle.com>
Route: <sip:p2.example.com;lr>
Route: <sip:p1.example.com;lr>
Route: <sip:p3.middle.com>
Route: <sip:p2.example.com;lr>
Route: <sip:p1.example.com;lr>
:
:
and the message is within 200
bytes of the path MTU,
which transport protocol is
used? TCP? or UDP?
