Merged revisions 132571 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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r132571 | kpfleming | 2008-07-21 17:45:16 -0500 (Mon, 21 Jul 2008) | 2 lines

teach chan_dahdi how to find the D-channel on BRI spans, and don't attempt to use channel 24 as a D-channel on spans of unexpected sizes

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@132573 65c4cc65-6c06-0410-ace0-fbb531ad65f3