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. Through our Global Connectivity portfolio, we help to create one VoIP (SIP trunk) infrastructure worldwide, which provides a solid reliable foundation that works together with all your favorite applications in the Cloud (such as Microsoft Teams, Google or Salesforce).
Benefits
One telephony environment for the entire organization
The entire telephony infrastructure from inside and outside the organization can be combined in one telephony environment for all employees.
Integrate VoIP with other Cloud applications
One environment that works with all your favorite applications in the Cloud, such as Microsoft Teams, Salesforce, etc.
Worldwide experience
Each country has its own rules and laws. With our carrier-neutral approach, we combine the VoIP (SIP trunk) solution from multiple tier 1 providers for 1 reliable global solution for flexible usage.
Retention of existing functions
We ensure that the new VoIP (SIP trunk) environment is seamlessly integrated. For instance, with the current service desk, contact center, local telephone exchange or current other systems. This way you migrate at your own pace per department or location.
Worldwide telephone numbers
Optimal accessibility with worldwide available telephone numbers, such as geographic, local, free, or paid service telephone numbers.
Worldwide 911/112 emergency services
Our services can provide 911 reachability worldwide for most countries.
Flexible, future-proof and cost-efficient
Employees can make/receive calls anywhere in the world. At home, at the office or on the road. Always available with predictable costs by following the smartest routes with tariff plans and tailor-made packages.
High availability
By independently combining different carriers and routes, it is possible to create a redundant design with availability of up to 99.999%.
“We make a difference by designing, building and proactively managing all of our flexible, reliable and carrier neutral solutions with our Professional Services.”
Managing Director Horizon
Melvin Jellesma
Our Professional Services

Project & Service management
We are involved from creating to building the design, incl. the transfer to the operate phase in the management organization.
Customer Mission Control Portal
With our Customer Mission Control Portal you retain full insight and control over all your solutions, status and invoicing.
Design & Engineering
Our Engineering professionals realize a design that fits the exact requirements for each solution at any location.
Global Logistics Services
Shipping of hardware components to desired locations, support with customs clearance, import duties, installation, etc.
Global Certified On-site Engineers
Use our engineers for, among other things, fast migrations and support on (remote) sites without local technical personnel.
24x7 Support & Monitoring
Our Global Mission Control Center – 24×7 NOC proactively manages all solutions worldwide (NEN-ISO/IEC 27001:2013).
IT Manager Vertom Shipping
Patrick Taffijn
Communication solutions
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
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
Cost-efficient
ABOUT
PARTNERS
CONTACT
Global Mission Control Center
Boylestraat 38a, Ede
6718 XM, The Netherlands
General
T: +3120 226 1500
E: contact@horizontelecom.nl
Monday till Friday 08.30 - 17.00
Support
T: +3120 226 1500
E: service@horizontelecom.nl
Monday till Friday 08.30 - 17.00
Outages
T: +3120 226 1555
24x7 available
ABOUT
COMMUNICATION
INFRASTRUCTURE
PARTNERS
CONTACT
Global Mission Control Center
Boylestraat 38a, Ede
6718 XM, The Netherlands
General
T: +3120 226 1500
E: contact@horizontelecom.nl
Monday till Friday 08.30 - 17.00
Support
T: +3120 226 1500
E: service@horizontelecom.nl
Monday till Friday 08.30 - 17.00
Outages
T: +3120 226 1555
24x7 available