Merged revisions 238412 via svnmerge from

Merged revisions 238412 via svnmerge from
https://origsvn.digium.com/svn/asterisk/trunk

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  r238412 | dvossel | 2010-01-07 14:15:27 -0600 (Thu, 07 Jan 2010) | 16 lines

  Merged revisions 238411 via svnmerge from
  https://origsvn.digium.com/svn/asterisk/branches/1.4

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    r238411 | dvossel | 2010-01-07 14:14:25 -0600 (Thu, 07 Jan 2010) | 10 lines

    fixes crash in "scheduled_destroy" in chan_iax

    A signed short was used to represent a callnumber.  This is makes
    it possible to attempt to access the iaxs array with a negative
    index.

    (closes issue #16565)
    Reported by: jensvb
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.1@238430 65c4cc65-6c06-0410-ace0-fbb531ad65f3