Merged revisions 301504 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.8

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  r301504 | jpeeler | 2011-01-12 12:12:08 -0600 (Wed, 12 Jan 2011) | 26 lines
  
  Merged revisions 301503 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.6.2
  
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    r301503 | jpeeler | 2011-01-12 12:11:49 -0600 (Wed, 12 Jan 2011) | 19 lines
    
    Merged revisions 301502 via svnmerge from 
    https://origsvn.digium.com/svn/asterisk/branches/1.4
    
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      r301502 | jpeeler | 2011-01-12 12:10:42 -0600 (Wed, 12 Jan 2011) | 12 lines
      
      Fix CPU spike when pressing DTMF after agent login.
      
      The problem here is that DTMF was being continuously deferred and requeued
      since ast_safe_sleep is called in a loop. There are serveral other places in the
      code that sleeps and then loops in a similar fashion. Because of this fact I
      opted to not defer DTMF any more, which will not affect the original fix:
      
      https://reviewboard.asterisk.org/r/674
      
      (closes issue #18130)
      Reported by: rgj
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@301505 65c4cc65-6c06-0410-ace0-fbb531ad65f3