Sounds like you have the signaling down, you call out and you say you call in and no more busy. Do like OBTW says, put a plain ol' phone on it on whichever channel you hit first, when you see it hit that channel on the channel bank pick up the phone and see if you have a connection, it won't ring, unless your bank is supplying ringing current. So if your equipment is looking for ringing that could be why it's not answering. Your bank probably has an option for ringing.
