About Telongo

Telongo got its start manufacturing hotline telephones and auto dialers for the money transmitter industry, where dependable, pre-programmed hardware isn't a nice-to-have — it's how a location opens for business. That focus on turnkey reliability has stayed at the center of everything we build since.

Along the way we've engineered everything from toll restrictors and DTMF decoders to custom plastic enclosures — work that's shaped how we approach every new project: understand the exact operational requirement first, then design the hardware and firmware around it, not the other way around.

Today that same engineering team designs our standard product line — hotline telephones, hotline dialers, call controllers, and DTMF modems — and takes on custom firmware, hardware, and ground-up development work for customers with more specific needs.