Fixing a Protel Payphone Part 5: The PBX & Dial-in

This post is a continuation in a series, “Fixing a Protel Payphone.” To view the previous installment, check out Fixing a Protel Payphone Part 4: XNet Config With XNet now configured, the last step was to take care of the connection between the phone and the modem. Normally this wouldn’t be a problem as I can usually take an ATA or two and configure them on my Asterisk PBX and things work without…