Merged revisions 203258 via svnmerge from

Merged revisions 203258 via svnmerge from
https://origsvn.digium.com/svn/asterisk/trunk

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  r203258 | qwell | 2009-06-25 14:22:46 -0500 (Thu, 25 Jun 2009) | 10 lines

  Unmute when we get a dtmfup (we muted on dtmfdown) event.

  This would occasionally cause one-way audio when using hardware DTMF detection.

  (closes issue #14761)
  Reported by: tzafrir
  Patches:
        v1-14761.patch uploaded by dimas (license 88)
  Tested by: tzafrir, dimas
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.1@203274 65c4cc65-6c06-0410-ace0-fbb531ad65f3