We have a fairly ancient Norstar StarTalk Flash phone system, 7 lines, 14 stations. We have one line that is dedicated to one department, it's like line 4, has a distinct ring on one station, and a normal ring on the other stations programmed to ring (common area phones.)

This line is supposed to roll over to the station's voice mailbox whenever someone calls and the phone is on the line; we've recently heard from people calling in that they are getting a busy signal, not voice mail.

I'm trying to look into this, I have all of the books for the phone system, but they are REALLY confusing if you are not the one that set up the system (I'm not, this thing predates my time here by several years [Linked Image from sundance-communications.com]) since a lot of the instructions assume you are following along.

Where can I start looking, I'm sure that some setting got tripped somewhere along the line and needs to be re-set.

Any help would be muchly appreciated! Thanks!