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Why RingCentral
Cloud Telephony?

Say goodbye to fixed on-site telephone infrastructures. Use one future-proof solution by integrating your favorite Cloud applications. Employees can choose between a physical telephone, fixed telephony on their mobile phone, or a softphone on the PC.

Do these challenges sound familiar?

We make sure RingCentral is accessible for every employee in any corporate structure. Together with our Global VoIP platform, we provide a secure, reliable, scalable, and intuitive platform for conversations, video conferences, and collaboration.

RingCentral can integrate with over 200 applications, including Google, Microsoft, and Salesforce; the entire ecosystem adds up to more than 3,000 applications. With our Professional Services we help our customers to design, build and manage their Global Cloud Telephony solutions across the globe.

I want to centralize my telephony infrastructure

Discover the solution

I want one solution for chat, video and phone calls

Discover the solution

I want worldwide accessibility for employees

Discover the solution

The most important benefits

One user-friendly environment

One environment for voice, video, messages, and file sharing. Designed to collaborate with colleagues and clients on all devices (fixed phones, mobile phones, desktop, browser, and Cloud applications).

Open API: Integrate with existing applications/systems

One environment that works with all your favorite applications in the Cloud, such as Microsoft Teams, Salesforce, Zendesk, and many other applications. Integrate your favorite service desk, contact center, or other systems. Migrate at your own pace by region, country, department, location, or even by the user.

Worldwide standardization with predictable costs

Each country has its own rules and laws. With our carrier-neutral approach, we combine multiple tier1 providers in the design for a global solution that is flexible and reliable. No more opaque local costs, but predictable costs thanks to smart least-cost routing, tailor-made all-in tariff plans and calling packages.


Flexible and easy management

Easily add/merge new employees/locations without investment and downsizing when necessary. By using one global solution and proactive management, you are assured of the latest security updates and on-site management is a thing of the past.


Availability: 99.999% with local numbers

The platform has an unprecedented high availability. For Global Cloud Telephony we use multiple providers and routes in one independent solution to guarantee the availability of up to 99.999%. Improve accessibility by adding global-local phone numbers e.g. geographic, toll-free, or paid service numbers.

“We make a difference by designing, building and proactively managing all our flexible, reliable and carrier-neutral solutions with our Professional Services.”

CEO Horizon Telecom
Melvin Jellesma

Our Professional Services

Project Management

Our project managers are closely involved in the process; from the design to the development of the solutions, including the transfer to the management organization.

Global Logistics Services

A single point of contact for shipping and handling of hardware components worldwide, incl. support with customs clearance, import duties, installation, etc.


Service Management

Our service managers proactively monitor and ensure optimal performance for the best experience for your employees by responding to trends and changes.

Global Certified On-site Engineers

Use our engineers as your own employees and deploy them globally for migrations and support at (remote) locations without having to use local technical staff/employees.

Customer Mission Control Portal

Gain insight into all invoicing and solutions worldwide (including statuses) in one portal. Designed to fit your organization’s structure and hierarchy.

Design & Engineering

Together with the (solution) architects and consultants, our engineers create a design that exactly meets the requirements of all solutions, locations, and users.

24x7 Support & Monitoring

Our Global Mission Control Centre (NOC) manages all our global solutions. Our experienced, service-oriented experts even solve issues that aren’t our responsibility.

“Horizon Telecom offers truly independent advice and we consider them part of our own IT team. Cases are dealt with promptly and efficiently. The professionals know what they are talking about.”

Hexagon (Intergraph)
Jim van Dijken, IS specialist

Communication solutions

Global VoIP

Global VoIP (SIP trunk) stands for one telephony infrastructure, which is realized by combining reliable global telephony providers on one Global VoIP (SIP) platform.


Microsoft Teams

Easily call with Microsoft Teams. We can also integrate Microsoft Teams with our Cloud Telephony solution, providing you with specific telephone exchange functions.


RingCentral Cloud Telephony

Say goodbye to telephone exchanges on location and use one future-proof solution by linking with your favorite Cloud applications for worldwide accessibility of your employees.

We are Horizon Telecom

Horizon Telecom delivers communications, infrastructure, and security solutions worldwide with 24x7 proactive support and local management. With our independent experts, we work with the world’s best technology partners to connect the aspirations of our customers with flexible and reliable solutions that leverage proven innovations accredited by Gartner®.

Globally Yours, Simply Smiling

Our added values


Independent & Carrier-Neutral


1 Tailored invoice, 1 Contract, 1 Contact, 1 SLA


Global Mission Control Center – 24x7 NOC


Professional Services


Flexible & Scalable tailor-made solutions


'Best-of-breed' technology