The system has a 509 processor, a 308 card in the first slot, a 400 card in the second slot, and a second 400 card in the 4th slot. There is a small VM card in the processor. There are 6 18d sets, 3 of which are key sets and 3 are pool sets. There are 10 analog sets and a credit card machine. The Auto Attendant answers all 15 c/o lines and uses selector codes for direct transfer. Lines 2 thru 15 are in the main pool.
I've called the main number, which hunts, from 5 different phones at the same time (well as fast as I could dial). Two answer and the rest ring and the system does not restart.