Not mentioned but very important was the number of inbound telco lines installed. Equally important was making sure the local phone company properly configured the hunt group for those lines. Without a properly functioning hunt group it would be very difficult to optimize the allocation of telco connections to all the users connecting and disconnecting.

Also, it was unusual at the time for a local phone company to receive a request for 25 lines (or more) to be installed in the basement of a residence. They would generally push back thinking you were running a bookie operation or some such.