No matter where you are in the world — local office or on the road — you want a consistent IT experience. Colt Cloud UC integrates all your enterprise communications into one unified communications service.

Bring all your voice calling, IP connectivity, and applications together. Make them available anytime, anywhere, and on any device.

Cost Effective & Fast

Reduce costs and simplify billing by working with one unified communications provider. We have everything you need from IP telephony, to SIP Trunking and Unified Communications.

All your systems and processes will work much faster with one supplier providing all application and infrastructure services.


We make it easy to use and administer all communications services. Dedicated online portals let you quickly deploy new sites/users and make any changes you need. Colt can manage all your communication needs today, and as they evolve. Local or global IP Telephony, Voice minutes, Unified Communications and Collaboration services.

Have a single and consistent experience, anywhere in the world, with our Pan-European network and global partnerships. No difference between the work desk or virtual desk.

Human Resources

Satisfy employee demand for Bring Your Own Device (BYOD) and the flexibility to work from anywhere.  And they can still access everything over cloud based unified communications.

Data sheet

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Contact us about Cloud UC:

Call a specialist

+44 (0) 20 7863 5510

Case Study

Case Study: Interflora

Interflora Iberia improves quality of service and order management by relying on Colt solutions: smart network, contact centre solution and virtual switchboard with dedicated web access…

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Meet Joanne, Senior Account Manager

“The best part of working for Colt is the culture. All my colleagues have a positive attitude and a strong desire to help which makes for an exceptional working environment. More importantly it enables me to provide the highest level of service and support to my customers.”

Careers at Colt
As VoIP gains more acceptance and demand increases, we’re confident that Colt is well equipped to accommodate our growth and will continue to provide us with the excellent support we always receive. Intercall
VP Telecoms EMEA, Intercall