Andrei Pelinescu-Onciul writes:
There are other dns related defaults you should be aware off: dns_srv_lb - default off. With it on the srv failover will do load balancing (as in rfc2782), wihtout it will only do simple failover based on priority and weight (will try all the A records in order instead of load balancing between records witht he same priority based on weights). With it on -> slight performance hit.
i need to look this more carefully, but in my opinion default behavior should be what "rfc 3263 locating sip servers" says.
-- juha