Flexible, scalable, rock-solid reliable phone services - perfect for YOUR business!

Callagenix business phone services can be tailored to your exact requirements. Combine our wide range of UK and international phone numbers with our flexible services to create your ideal solution. No matter how simple or sophisticated your requirements, we’ve got you covered.

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UK & Worldwide Numbers

Looking for a new number? We have a full range of UK and international numbers (100+ countries available) to choose from, including regional, freephone, national rate and premium rate options. Alternatively, port your existing number to us for better rates and more features.

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Flexible Phone Services

Our flexible and scalable phone services enable you to build the phone system you really need. From a simple call divert, to a fully featured virtual switchboard connecting multiple sites across the world, you’re free to create your ideal phone service.

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IP Telephony (VoIP)

Our business class VoIP service offers crystal-clear call quality on every call. With savings on line rental and low call rates, VoIP is a great way to cut your costs without sacrificing quality. With our VoIPinclusive service you can even fix your monthly phone bill!

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Choose from our pre-selected packages or create your own solution

With Callagenix, you get the flexibility to create the phone service that’s exactly right for you. It’s quick and easy to add new numbers, services, users and extensions at any time. If you’re not sure what you want, we have created several ready made solutions for popular situations. This gets you up and running quickly, and it’s a simple matter to customise your set up at a later stage.

You'll find some of these solutions listed below. If you don't see what you're looking for, let us know and we'll help you build the service you need.

International numbers

Do you do business abroad? If you have customers, agents or offices overseas, make it easy for them to contact you with our range of international phone numbers. We cover thousands of cities in over 100 countries, offering regional, national, toll-free, and universal freephone numbers. It’s easy to establish an overseas presence with Callagenix!

International numbers

Small businesses

Small businesses love Callagenix as we offer all the numbers and services you’ll ever need, at a fraction of the price of a traditional system. Our flexible services allow you to remain agile, so you can quickly act on new opportunities, and easily scale up as your business grows. You can even fix your monthly phone bill with our VoIPinclusive service.

Small business solutions


Hosted phone services are perfect for start-ups. Present a professional image from the start with a dedicated business number, even if you’re just forwarding calls onto your home or mobile number. Our services are location independent, hugely flexible and can be scaled rapidly, so they can grow and adapt as your new business does.

Start-up solutions


We fully support charities of all sizes, recognising the positive impact these organisations have on society. We offer a wide range of 0300 numbers, the number range reserved exclusively for charities and other non-profits, as well as preferential rates and possible promotional opportunities. Contact us today to find out more about how we can help.

Help for charities

Call centres

Our cloud based solutions offer great value to call centres, making it easy to set up and manage your teams of operatives. Set up multiple hunt groups and assign supervisors to manage them. Use the Wallboard and Call Data reports to track what’s going on. Our VoIP service can also save you a small fortune on line rental and call costs.

Call centre solutions

Business continuity

How would your business cope in a disaster? Our range of disaster recovery / business continuity services keeps your phone system up and running in the event of a flood, fire, or other crisis event. Host your phone system (or a mirror of it) in the cloud, set up an information line and send out SMS messages to keep everyone updated.

Business continuity solutions

Latest news & articles

Planning success in 2018

If your 2018 broad brush plans included doing something to improve customer interactions, then reviewing your telephone system may be part of the solution...Read more

Global or local: It’s your call

Business too can speak to the world on multiple levels and can enable the world to answer simply by choosing a telephone number mix which resonates with customers...Read more

Back to basics

UK SMEs plan to go back to basics in order to support their growth plans for 2018 - We look at one business telephony option....Read more

Calling time on assumptions

When we apply a more questioning approach not only to telephony but also to our other processes and procedures it opens up a whole range of possibilities...Read more