Do *NOT* use DEFAULT_SIP_PORT in these comparisions, since users may change

that, but the protocol clearly states that if we DO NOT mention a port it
is 5060. DEFAULT_SIP_PORT is whatever we default to listen to.

I believe it's the third time I revert a patch like this.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@44697 65c4cc65-6c06-0410-ace0-fbb531ad65f3