Merged revisions 262657,262660 from

https://origsvn.digium.com/svn/asterisk/be/branches/C.3-bier

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  r262660 | rmudgett | 2010-05-12 11:46:47 -0500 (Wed, 12 May 2010) | 4 lines

  Forgot some conditionals around the callrerouting facility help text.

  JIRA ABE-2223
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  r262657 | rmudgett | 2010-05-12 11:26:49 -0500 (Wed, 12 May 2010) | 22 lines

  Add mISDN Call rerouting facility for point-to-point ISDN lines (exchange line)

  In the case of ISDN point-to-multipoint (multidevice) you can use the
  mISDN "facility calldeflect" application for call diversions from external
  (PSTN) to external (PSTN).  In that case this is the only way to get rid
  of the two call legs to the PBX and let the calling number at the C party
  become the number of the A party.  In the case of ISDN point-to-point
  (exchange line) the call deflection facility may not be used.  Instead a
  call rerouting facility has to be used.

  This patch for chan_misdn.c is an extension to realize this service
  (facility rerouting application).  It can accept either spelling:
  "callrerouting" or "callrerouteing".

  The patch is tested towards Deutsche Telekom and requires a modified
  version of mISDN from Digium, Inc.

  Patches:
        misdn_rerouteing_corrected.patch (Slightly modified.)

  JIRA ABE-2223


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@262661 65c4cc65-6c06-0410-ace0-fbb531ad65f3