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Who are we?

We are communication enthusiasts. And tireless solution-seekers. Meanwhile C4B has been synonymous with quality and innovation made in Germany for more than 15 years. With our team of around 50 employees we develop and market "XPhone", a Unified Communications solution of which more than a million installed licences in companies of all sizes and industries are in use.

What drives us

Two ideas drive us:

  • Good communication is the basis for the success of a company.
  • Good communication must be simple.

Why? Because good communication is indispensable for practically every company – whether it produces screws or develops rocket technology. Because day in day out, tens of millions of phone calls, emails, chats and conferences decide the fate of major projects and orders.  Because every interaction within the company can be the spark for the next great idea.

Our goal

Our goal is that no barrier disrupts our customers' communication: neither technical, nor geographic, nor time-related. With a software that needs no explanation. That works independently of device, location & infrastructure. And integrates seamlessly into your IT landscape.

Our strength

Our strength is integration. IT infrastructures are growing, the amount of data is increasing, processes are becoming more complex. We respond to this development with a clearly structured, intuitive solution, which thanks to open interfaces smoothly integrates into the most diverse applications and supports all major PBXs.

  • Employee mobiles become a potential risk

    For companies, 2018 is all about the EU General Data Protection Regulation (GDPR): the entire processing of personal data must be scrutinised. A hitherto underestimated risk comes from the mobile phones of their own employees: company contacts transferred to the smartphone can mean a massive violation of the GDPR.

  • C4B in numbers: The whole truth

    Facts, facts, facts: How much coffee do we drink during the day? How many colleagues wear suits? And long does a cake survive on avarage? You will find the whole truth here!

  • Unify-Ready: Unify OpenScape 4000 V8

    We are unify-ready! Or rather: XPhone Connect 6 is it. XPhone Connect is now certified for use with the Unify OpenScape 4000 V8.


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