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Providing extraordinary connections anywhere and everywhere.

Independant Experts

Independent Experts

At Pace & Right First time

At Pace & Right First time

Full Lifecycle Management

Full Lifecycle Management

Who are Colt?

Colt is a global digital infrastructure company that delivers extraordinary connections with genuine care. They bring together amazing people, intelligent networks, and like-minded partners on a global scale to create solutions that put the power of the digital universe in the hands of our customers.

Colt Services


SIP/ISDN services

Colt Voice portfolio delivers reliable and affordable carrier and enterprise business grade services to enterprises. Colt ISDN product provides high-quality voice, allowing an easy transition to SIP Trunking when you're ready.

IN Services

Colt Intelligent Network (IN) Services is a managed portfolio of inbound voice services that provide our customer’s callers with an improved user experience, whilst maximising the performance of the customer’s call centre.


Improve collaboration by bringing together productivity applications with Microsoft Office 365 and enterprise-grade voice services in the cloud.


Seamlessly converge your voice and data network across your global footprint by migrating to VoIP, and get a highly reliable service at a reduced cost.

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