Merged revisions 72851 via svnmerge from

Merged revisions 72851 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

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r72851 | crichter | 2007-07-02 10:27:19 +0200 (Mo, 02 Jul 2007) | 9 lines

Merged revisions 72099 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.2

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r72099 | crichter | 2007-06-27 15:22:37 +0200 (Mi, 27 Jun 2007) | 1 line

simplified generation for dummy bchannels, also we mark them as dummies, so they are not used later as real-bchannels, optimized the RESTART mechanisms, we block a channel now on cause:44, and send out a RESTART automatically, then on reception of RESTART_ACKNOWLEDGE we unblock the channel again.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@72868 65c4cc65-6c06-0410-ace0-fbb531ad65f3