Merged revisions 89296 via svnmerge from

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

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r89296 | russell | 2007-11-15 11:19:28 -0600 (Thu, 15 Nov 2007) | 8 lines

Update the SLAStation application to account for the case where the SLA thread
has a call out to the station,  but the user has pressed a line button to answer
the call instead of picking up the handset.  If they do, the phone sends out a
new INVITE.  So, the SLAStation app must check to see if it is picking up a
ringing trunk, and ensure that the other stations stop ringing.

(reported internally, patched by me, tested by mogorman)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89297 65c4cc65-6c06-0410-ace0-fbb531ad65f3