Merged revisions 96199 via svnmerge from

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

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r96199 | crichter | 2008-01-03 13:12:27 +0100 (Do, 03 Jan 2008) | 1 line

make sure frame is completely clean, before we send it to asterisk as DTMF. If we don't make it clean, it happens that one way audio occurs..
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@100794 65c4cc65-6c06-0410-ace0-fbb531ad65f3