Merged revisions 87342 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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r87342 | file | 2007-10-29 14:20:28 -0300 (Mon, 29 Oct 2007) | 6 lines

Fix issue where if both sides of the dialog cancelled the dialog at the same time chan_sip could kepe retransmitting a response for no reason.
(closes issue #9566)
Reported by: atca_pres
Patches:
      bug9566.patch uploaded by oej

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@87343 65c4cc65-6c06-0410-ace0-fbb531ad65f3