Cloud Telephone Systems

Inbound Business Phone Numbers
Freephone & Premium Rate

Toll free (freephone), shared cost, and premium rate numbers make your business more accessible across diverse international markets and workforce. With business phone numbers from Colt you can collect calls from 23 countries in 3 continents. Then, with a single web interface, you can deliver them anywhere in the world.

You choose the best tariff for your customers; toll free, IN Geo, shared cost or premium rate numbers.

Cost Effective & Reliable

By using Colt as your single service provider across all countries, you’ll simplify billing and reduce administrative overheads for all your calls.

We give a range of choices from routing to service packages and tariffs. You get to decide the best options for your business and your customers.


No matter how spread out your organisation is, you can have a simple point of control to manage all call traffic. And deliver them anywhere in the world.

We give you a suite of tools and automated reports to give you a complete view and control of how your business phone numbers are performing.

Through a single web interface, and easy to use online portal, you can make or schedule any changes based on your needs. Toll free & international business phone numbers leverage Colt’s global voice network helps you maintain a presence in markets even where you don’t have offices or staff working.

Learn more

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

Contact Centre Solutions
Provide the highest levels of customer service with Colt’s Contact Centre Services. A flexible and scalable solution that minimises risk and cost to the business.

Voice On Demand – Cloud Contact Centre Solutions
Take full control of your voice services with Colt Voice On Demand, enabling you to scale services up and down in real time to meet business demands.

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Contact us about Inbound Business Phone Numbers Freephone & Premium Rate:


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+44 (0) 20 7863 5510

Monday to Friday 9am - 5pm

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