Make sure that the channel is answered before doing SpeechBackground. (issue...

Make sure that the channel is answered before doing SpeechBackground. (issue #josh-wait-I-dont-have-issue-numbers)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@27194 65c4cc65-6c06-0410-ace0-fbb531ad65f3