Merged revisions 286118 via svnmerge from

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

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  r286118 | rmudgett | 2010-09-10 15:55:37 -0500 (Fri, 10 Sep 2010) | 25 lines
  
  Merged revisions 286116 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.6.2
  
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    r286116 | rmudgett | 2010-09-10 15:42:44 -0500 (Fri, 10 Sep 2010) | 18 lines
    
    Merged revisions 286113 via svnmerge from 
    https://origsvn.digium.com/svn/asterisk/branches/1.4
    
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      r286113 | rmudgett | 2010-09-10 15:33:16 -0500 (Fri, 10 Sep 2010) | 11 lines
      
      An outgoing call may not get hung up if a pre-connect incoming ISDN call is disconnected.
      
      If the ISDN link a pre-connect incoming call is using fails or is reset,
      the outgoing leg may not hang up or be delayed in hanging up.  (Causes:
      PRI_CAUSE_NETWORK_OUT_OF_ORDER, PRI_CAUSE_DESTINATION_OUT_OF_ORDER, and
      PRI_CAUSE_NORMAL_TEMPORARY_FAILURE.)
      
      Just hang up the call if the incoming call leg hangs up before connecting
      for any reason.  It makes no sense to send a BUSY or CONGESTION control
      frame to the outgoing call leg under these circumstances.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@286119 65c4cc65-6c06-0410-ace0-fbb531ad65f3