servers between endpoints, the Asterisk servers will not keep retransmitting the re-invites.
(closes issue #10274, reported by cstadlmann, patched by me with approval from file)
git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@77824 65c4cc65-6c06-0410-ace0-fbb531ad65f3