Probably the most lovable business phone system

Say hello to fonzer

Fonzer is your state of the art unified cloud communications platform with powerful capabilities to integrate, thanks to our full suite of APIs. But what makes Fonzer the most lovable business phone system is its user-friendliness, letting you build your business telephony without compromise.

Intuitive design

Optimize communications with just a few clicks


All interfaces are designed with the user in mind, making Fonzer not just beautiful but also very easy to use.

Drag & drop dial plans

Managing dial plans has never been this easy: simple drag & drop call apps in the dial plan.


The right fit

Built for companies of any size

You have one device, a few, ten, a hundred or a thousand? Let’s go! Fonzer has the capacity to scale to any size you want, from a one man show to a large enterprise. Your monthly subscription will always follow your actual usage.

It's your choice

Communicate with any device at any moment

Desk phone

Desk phone

Simply plug in your desk phone on the internet at any location and the full communication suite will be at your disposal.

Dect phone

Dect phone

Simply plug in your base station on the internet at any location and the full communication suite will be at your disposal.
Smartphone app

Smartphone App

With Qaller Plus your iOS or Android smartphone becomes an integrated part of your business phone system, even without changing your current mobile operator. This way you can call in and out with your fixed office number of choice and forward calls when needed.


With our Web Calls you can make or receive calls through the browser or an app on your computer.
Microsoft Teams

Microsoft Teams

Fonzer connects seamlessly with MS Teams. You can easily make phone calls, video calls and share files using any device: computer, smartphone or tablet.


Fonzie manages your phonebook, seamlessly integrated with O365 and Google. Calling your colleague is just one click away while you can check their status. With Fonzie you can consult your call logs and redial thanks to the integrated click2dial.

Your ears only

Advanced fraud protection and data security

Ensuring safe communication is critical to your business. It is also costly and complex. That’s why Fonzer contains a multitude of build-in features that reduce security risks, from intelligent and self-learning intrusion detection algorithms to phone call and data encryption.

Your ears only


Distributed and geo-redundant infrastructure

Fonzer is always there when you pick up the phone. This is because the highly distributed and geo-redundant infrastructure is spread across multiple data centres throughout Europe.

These interconnected data centres function as one, handling the communications load for all users. In case of an incident, any affected location is quickly isolated while services continue uninterrupted.


Administration & reporting

On you can easily browse the call detail records (CDR), dive into queue statistics or consult your invoices. Create an API integration with your ERP/CRM and follow up on all communication with Fonzer.


Do you feel triggered to know more about Fonzer’s solution, please feel free to contact us on +32 2 580 50 50 or fill in the form.