Merged revisions 209838 via svnmerge from

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

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  r209838 | russell | 2009-08-01 05:59:05 -0500 (Sat, 01 Aug 2009) | 13 lines
  
  Modify how Playtones() is used in Milliwatt() to resolve gain issue.
  
  When Milliwatt() was changed internally to use Playtones() so that the proper
  tone was used, it introduced a drop in gain in the output signal.  So, use
  the playtones API directly and specify a volume argument such that the output
  matches the gain of the original Milliwatt() code.
  
  (closes issue #15386)
  Reported by: rue_mohr
  Patches:
        issue_15386.rev2.diff uploaded by russell (license 2)
  Tested by: rue_mohr
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