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Audio Conference Call Services

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Save money and increase productivity with Colt audio conference call services. By enabling teams to collaborate from anywhere in the world you not only reduce travel costs, but increase both employee productivity and satisfaction.

Cost Effective & Quality Conference Call Services

Reduce travel costs and time away from the office without sacrificing clear communications and sharing of important visual or materials.

Feature Rich Conference Calling Service

Comprehensive conferencing features that work anywhere underpinned with Colt’s superior voice and data quality.

Retain complete control of your enterprise conferencing through our self-service portal that gives you real-time control to add, suspend and delete users as well as viewing detailed reports.


With Colt Call Services you can provision and host conference calls with literally hundreds of participants across the globe.

The people benefit is twofold; you help employees to work productively and collaboratively both internally and with clients. They enjoy flexi-working from any location.

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Want to learn more about our cloud telephony services?
Check out the rest of the products below.

Cloud Telephony and Unified Communications Solutions
Colt Cloud UC is a flexible and scalable, fully managed, cloud-based one stop shop solution that comprises of IP Telephony and Unified Communications, provided to customers as a service.

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Case Study


Salesland banks on Colt for its switch to VoIP. Salesland focuses on supporting businesses that want to outsource their sales services.

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Meet Papiya, HR learning and Development Associate

“The energy at Colt is unlike any other organisation I have come across – the people who work here are open-minded and always willing to challenge the status quo. Our workforce is what makes Colt such a fantastic place to work; every day I learn something new from one of my colleagues, which motivates me to push outside my own comfort zone and develop my skills for growth in my career.”


"Colt is a convenient one-stop shop for network and numbers in the 13 countries from which the majority of our European conferencing traffic comes."

Amanda Thomas
VP Telecoms EMEA, InterCall