Merged revisions 77795 via svnmerge from

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

(closes issue #10083)
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r77795 | qwell | 2007-07-30 15:17:08 -0500 (Mon, 30 Jul 2007) | 6 lines

Applications like SayAlpha() should not hang up the channel if you
 request an "unknown" character such as a comma.
Instead, skip the character and move on.

Issue 10083, initial patch by jsmith, modified by me.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@77796 65c4cc65-6c06-0410-ace0-fbb531ad65f3