Who we are 

We are communication enthusiasts. Tireless problem-solvers. For more than 25 years now, C4B has stood for German-made quality and innovation. With a team of around 70 employees, we develop and market XPhone – a Unified Communications solution with over one million licences installed in companies of all sizes and industries worldwide. 

What drives us 

Good communication is essential for virtually every business – whether it manufactures screws or develops rocket technology. Day after day, millions of calls, emails, chats and conferences determine the success of major projects and contracts. And every single exchange can spark the next big idea. 

Our mission 

Our goal is to remove every barrier to communication: technical, geographical or time-related. With software that needs no manual. That works independently of device, location or infrastructure. And that integrates seamlessly into your IT environment. 

Our strength 

Our strength lies in integration. IT infrastructures are expanding, data volumes are growing, processes are becoming more complex. Our answer: a clearly structured, intuitive solution that integrates smoothly with a wide range of applications thanks to open interfaces – while supporting all leading PBX systems.