Communications Services
Products + Services
Wholesale voice services
A portfolio of comprehensive Wholesale VoIP propositions addressing the needs of Carriers, Resellers and Service Providers.
Calling services
Colt Voice portfolio delivers reliable and affordable carrier and enterprise business grade services to enterprises.
Unified Communications
Flexible, scalable, fully managed end-to-end solution as a service.
Why choose Colt?

Full regulatory compliance
We offer full regulatory compliance across all of our geographies - now extended to 40+ countries in Europe, Asia, Australia and North America.

Always a quick time to market
React to changing demands in your business with ease, and add new telephone numbers to your existing service in just 3 days.

Centralise your services to one provider
It can be challenging to work with multiple providers across different countries - Colt can operate as your one-stop-shop for global voice services.
Our global voice network
Colt Voice portfolio delivers reliable and affordable carrier and enterprise business grade services to enterprises.
