We are a multinational Swiss software company with more than 20 years of experience in Unified Communication and Collaboration (UCC) solutions. We provide a unique application platform called Callisto for leading UCC manufacturers such as Cisco Systems and other IP PBX producers.

Our mission is to help Cisco systems integrators, and service providers improve their customers’ communications infrastructure for vertical markets – such as Enterprise Communications, Cruise, Hotel, Healthcare, and more.

We start where others stop. The wide range of application modules for each market catapults Callisto into a market-leading position. From on-prem to Cloud/UCaaS projects, we make it easy for companies around the world to take their communications to the next level.

In an ever-changing market, you need a solid partner with a flexible and modular platform: Callisto.

Our USPs: All-in-one, Modular, Simple, Flexible, Tailor-made, Green-IT, and the lowest TCO on the market.

CTModule AG

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