Business Phone Systems with Microsoft Teams

The Microsoft 365 Cloud-based Phone System

Telephony with Microsoft Teams

Our Data One Expertise makes the Difference

With our expertise from many Teams Calling projects, we can help you plan and implement your Microsoft Teams Phone System, placing special emphasis on meeting your needs. We offer solution scenarios for simple to highly complex applications. Whether it’s a small office, a medium-sized company or a global enterprise. We transform your old phone lines and analog, on-premises system into your familiar Microsoft 365 environment. Say goodbye to high acquisition costs and aging hardware. Welcome to the world of cloud-based phone systems!

With Microsoft Teams, all doors are open to you and your business phone system can be perfectly integrated into the Microsoft ecosystem. Basic features such as the provision of personal fixed network numbers and voicemail, but also more complex features such as call queues or auto attendants, can be implemented with Microsoft Teams. Thanks to Teams Phone you can reach maximum flexibility. You can always be reached via your existing phone number, whether in the office, in the home office or on the go, whether on a desk phone, PC or mobile phone. This allows you to integrate your Phone systems even deeper than your traditional phone system ever could.

Phone in Microsoft Teams

Accessible on all devices via your phone number
Easy usability in a familiar environment
Without maintenance-intensive, expensive phone system
Flexible scalability
per user
Central user management in the M365 Admin Center
Best performance & security thanks to Microsoft Cloud

Is your phone setup sustainable?

We will be happy to analyse your current phone setup with you, show you the individual functions of Microsoft Teams, advise you with regard to the necessary licensing, analyse your current hardware or recommend the suitable one, define the implementation procedure together with you and accompany you with the implementation.


CallingONE - the flexible Cloud SBC

The SBC for Microsoft Teams Phone

CallingONE offers you a hosted Session Border Controller with flexibility and exceptional quality. Whether you’re using Microsoft Teams Phone, integrating it with a traditional phone system, or utilizing conventional analog terminals, we don’t bind you to a specific plan or phone provider. The choice is yours in selecting your provider and configuring how you want to harness our SBC’s capabilities. And all this for 19.90 € per session / month!

Teams Phone

anywhere – any device

Lean and intuitive user interface for all telephony functions directly in teams

Availability of landline telephony with Microsoft Teams – Anywhere, any device

«We are fully operational in times of home office and can be reached as usual by our customers
thanks to the use of Microsoft Office 365 and Teams as mean of collaboration and communication also for telephony»​
Bianca Stark | Adldinger
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