Bell Payphone: Difference between revisions

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Created proper page, with history, tech specs, plans, etc.
m (Ztary moved page Bell Phone to Bell Payphone: More descriptive phone)
(Created proper page, with history, tech specs, plans, etc.)
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This is the PHONE.
[[File:Bell_payphone_1.jpg|thumb|The Phone with original CFC insert]]
 
== History ==
 
This phone was donated by the [https://cfccreates.ca Canadian Film Center], it was previously part of their [https://cfccreates.com/content-hub/bell-payphone-labs/ Bell Payphone Labs installation], which was a series of payphones designed to subvert expectations of what a payphone should be. Ours specifically dispensed gumballs.
 
More pictures of the teardown are available on request, to see the tech originally used.
 
== Machine ==
... Its a phone ...
 
It has:
* Receiver with speaker and microphone
* T9 keypad
* Backlit LCD display
 
== Our Work ==
 
=== Entry ===
 
Since the machine was donated without keys, the first step was getting in. This was painful and took all the hammers in the shop, but was eventually successful. A [https://www.payphone.com/T-Key.html T-Key] has been made which is now the ''only'' required tool for opening up both the main body and the cash drawer. It's attached with a string.
 
=== Reverse "Engineering" ===
 
Everything inside the payphone is relatively straight forward
 
* LCD Display
** 2x20 Characters
** Driven by a HD44780
** 9 pin cable for sending data
** Separate black/red twisted pair for backlight
 
* Receiver/Handset
** Yellow/black pair for speaker
** Red/green pair for microphone
** Standard 4P4C configuration
 
* Receiver Sensor
** Triggered when handset is picked up.
** White/white twisted pair.
 
* T9 Keyboard (12 / 3x4 button)
** Standard matrix keyboard
** 10 pin cable
 
* Language/Speed Dial buttons (6 / 2x3 button)
** Half rebuilt with some tack switches
** Reenforced with a 3d printed bracket
** Not wired up to a cable yet.
 
=== Working Features/Plans ===
 
Lots of ideas have been floated, but no steps taken currently. '''This project is open for anyone to jump in currently'''
 
* [https://en.wikipedia.org/wiki/Phreaking Phreaking]
* Simulate an original payphone as much as possible (recreate keypress noises, scrolling text) but then go weird.
* Play meme songs (rickroll, bananaphone etc.)
* Accept meme numbers being input.
* Choose your own adventure game.
* Lots of LEDS (originally for whole booth design)
* Just make it into a regular phone (accepts incoming, makes outgoing calls, RJ11, just plug it in)
* Hide a small camera and a thermal printer for a "Cameraphone Booth"
* Disinformation Booth (hook up a busted language model.
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