Kevin Brennan writes:
A SIP UA wanting to initiate a call to sip:bigcheese@bigu.edu will first send a DNS SRV lookup to bigu.edu. With a successful return, the SIP URI may be re-written to sip:bigcheese@sipserver1.bigu.edu.
that is definitely not the right behavior. dns srv + a lookup results destination ip address where request it sent, not domain for the request uri.
-- juha