Western Electric 1D/2D Payphone Controller Interface for Asterisk
Kirk writes in “I remember Limor had a payphone with a redbox-able circuit for making free calls posted a long time back. This guy took it a step beyond ith a circuit for controlling the coin mechanism on payphone. From the page:”–
This project aims to emulate a coin line as required by the older “dumb” (ie, non-COCOT) payphones such as the Western Electric 1D “Fortress” series. This coin line interface connects in between an Asterisk PBX and the payphone. It provide the coin control functionality as well as the ability to determine whether an initial rate has been deposited, and can also perform the “stuck coin” test. In addition, it can count dial pulses to provide out-of-band dial ignalling to Asterisk for the rotary-style 1D1 payphones.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.