Using a Radio Shack PRO-51 put into test mode to listen in to analog AMPS calls.

Making a SIP call through an AMPS phone using Osmocom-Analog and an Asterisk PBX.

Testing installation of a C4A gong ringer inside our flagship payphone.

PhilTel is excited to announce the next evolution in in our services! Soon, PhilTel will offer advanced "Cellular Telephone" services, allowing you to place calls on the go. That's right, new cellular telephones come standard with a power cord for the 12V cigarette lighter in your motor vehicle and some boast a lead-acid battery pack allowing up to 45 minutes of use! No longer will you have to walk around and find a PhilTel payphone, you can have a phone on your person at all times!

Demonstration video of blue boxing a PhilTel payphone. This technique was popular in the '70s to get free long distance phone calls.

Demonstration video of how to red box a PhilTel payphone. This technique could be used on payphones from the '70s through the '90s (and maybe later) in the North America.