asterisk-users, where a user was using Playback, but needed the
features of Background, and had no idea that Background existed,
or that it might provide the features he needed. I thought the
best way to avert these kinds of queries was to provide "See Also"
references in all three of "Background", "Playback", "WaitExten".
Perhaps a project to do this with all related apps is in order.
git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@111391 65c4cc65-6c06-0410-ace0-fbb531ad65f3