Exchange in a Box
Simple Telephone Exchange
Instantly create a working two-phone communication system with our “Exchange in a Box” – the ultimate solution for escape rooms, film sets, and immersive theatre.
Are you looking to add an authentic, functional intercom to your project without the hassle of complex wiring or expensive PBX systems? The Stage Telephone Ringer “Exchange in a Box” is your perfect solution.
Designed for the UK, this unique device breathes life into any two UK landline telephones (new or old), transforming them into a reliable, two-way intercom. Simply plug in your phones and dial—it’s that easy. Even works with antique rotary dial phones.
As seen on the channel 4 TV program “Find it Fix it Flog it”
Designed for Makers, Directors, and Designers
Whether you’re creating a thrilling puzzle, a period-accurate film set, or an interactive art piece, our system provides the flawless performance you need.
* Escape Room Puzzles: Create immersive and realistic challenges where players must communicate via a fully functional telephone. Our system supports both modern push-button and classic rotary dial telephones.
* Film & TV Props: Add a perfectly authentic touch to your production with working period telephone props. The “Exchange in a Box” ensures crystal-clear audio and reliable ringing, shot after shot.
* Theatre & Museum Exhibits: Connect two points on stage or in an exhibit with a discreet and dependable two-way communication system. It’s the ideal way to engage your audience with a vintage touch.
* Create a landline telephone intercom system for your vintage phones between rooms in your house.
* Or just show off your antique telephone collection at home.
Behaves intuitively, exactly like making calls to and from a normal UK landline telephone, so no training or skills required and no embarrassing moments, like the telephone continuing to ring when it has been picked up.
Effortless Setup for UK Landline Phones
Forget about complicated technical manuals and messy wiring. The “Exchange in a Box” is a true plug-and-play solution that lets you bring your creative vision to life instantly.
* Effortless Setup: Connect two hard-wired UK telephones to the unit, and you’re ready to go. No confusing configuration is needed.
* Intuitive Operation: The system works exactly like a classic British landline, complete with the distinctive UK ringing and dial tones. Simply lift the handset, listen for the tone, and dial to talk. You can’t do that with most telephone line simulators.
* Built to Last: Our Stage Telephone Ringer is a robust, reliable solution designed for repeated use in demanding environments.
Trusted by Professionals, Built for Creatives
Our unit has been used as a stage prop in plays and on TV, including on the UK series “Find It, Fix It, Flog It.” It’s also become a go-to for creating immersive experiences in escape rooms and museums. Far more than just a telephone line simulator.
We’re now selling this as a simple unit that allows you to create a versatile intercom system using standard British landline phones—whether they’re modern models or cherished vintage telephones. Use it to create a convincing telephone ringer for the stage or as a reliable, in-house intercom for your next creative project.
Why Choose the Original "Exchange in a Box"?
When your project demands quality and authenticity, you need a solution you can trust.
* Designed for UK Standards: The unit is specifically engineered to work seamlessly with British Telephones and their specific wiring, ensuring compatibility and reliability.
Ready to bring your creative vision to life?
Stop searching for complicated alternatives like “phone line simulators” or PABX’s. The “Exchange in a Box” is the simple, reliable, and authentic solution for all your vintage telephone intercom needs.
The system includes two telephone cables (one 17 meters and one 3 meters in length). However standard locally sourced “telephone extension cables” can also be used to extend the range by up to 100 meters if required.
Before you buy one of our “Exchange in a Box” units we strongly advise you to watch the “Installation Video” on our “About” page. This is particularly important if you wish to use the “dialling” out on stage and intend to dial out from an old British (pulse dial) telephone.
This “Exchange in a Box” is currently only available for sale in the UK.
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