Most of our phones are Protel 7000. These are in widespread use in the US. If you were to buy a new Protel 7000, with a refurbished computer board, you'd have to pay $419.00. You'd then have to add a mounting backplate ($20), pedestal ($129), and enclosure ($129). So the new values of the phones we have would be a total $697, before tax and shipping.
More info on the specific parts we have (including some technical diagrams):
Payphone411 says: " we can program your [Protel] phone for FREE if its your personal phone, with ExpressNet Version 1.55": http://payphone411.com/programming.html
Protel 7000 and parts:
More info on the specific parts we have (including some technical diagrams):
Programming guide to the Protel 7000
including:
Payphone411 says: " we can program your [Protel] phone for FREE if its your personal phone, with ExpressNet Version 1.55": http://payphone411.com/programming.html
Hacking Protel Phones: