Communications Services

Products + Services

Wholesale voice services

A portfolio of comprehensive Wholesale VoIP propositions addressing the needs of Carriers, Resellers and Service Providers.

Cloud Voice: Solutions overview - Colt Technology Services

White label solutions

White label VoIP services + voice reseller solutions

Become a Colt VoIP reseller with our white label business services. Build and sell your own products with full regulatory compliance under your own brand with minimum effort and low risk.​

Number hosting

Wholesale SIP

Your one-stop shop to enter wholesale Voice markets: it’s quick, cost-efficient, simple, consistent, regulatory compliant & fully automated thanks to our Numbers On Demand portal and APIs​

IN over VoIP

IN API Ordering

Colt now provides IN API ordering capabilities allowing the wholesale market to provide near real time activation of inbound numbers in Europe.

Calling services

Colt Voice portfolio delivers reliable and affordable carrier and enterprise business grade services to enterprises.

Business Phone Numbers

Inbound and Freephone Numbers

Our inbound phone number solutions include toll-free, geographic, premium rate + shared cost numbers.

BYOC

SIP trunking

SIP Trunking solutions simplify all your telecommunications into a single IP network.

Unified Communications

Flexible, scalable, fully managed end-to-end solution as a service.

Intelligent Communications

Intelligent Communications

Colt Intelligent Communications brings together the power of Microsoft’s cloud productivity applications with enterprise communication tools.

Cloud SBC

Cloud SBC

Colt Cloud SBC provides a rapid full cloud solution for Direct Routing, avoiding any on-premise equipment and provisioning remotely within days.

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Cloud SIP - BYOC

Colt SIP Trunking can connect to Microsoft, Google, Zoom, Genesys, Twilio, Cisco Webex and in fact anywhere on our global footprint where you need to activate voice for your users. Let us know if you want to become a Carrier Service Provider partner!

Why choose Colt?

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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.

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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.

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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.

Colt Voice Coverage Map 2024