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Instant SIP Provider solution for business VoIP calls

Easily and reliably manage your calls in HD quality with us, plus greatly reduce existing costs associated with your current SIP provider. Use our VoIP service to power your calls as a hybrid system in combination with your existing on-premises PBX (Private Branch Exchange).

Alternatively, if you're new to SIP trunking, use our state-of-the-art hosted VoIP service to effortlessly route inbound and outbound calls via the Cloud, all without the need to purchase an on-premises PBX or specialist hardware. For distributed teams, remote working and collaboration are a seamless experience. Communicate via voice, video or business instant messaging in a matter of minutes.

Cross-device SIP phone system for business

Fast, Easy, Cloud SIP Trunking Set-Up

Cloud-based SIP trunking explained diagram
Easily manage business phone numbers

Easily add phone numbers and extensions or transfer your existing numbers from your current SIP provider into us. We're here to help at every step.

Configure call routes via a Cloud PBX

Simply configure calls to your private Cloud PBX. Our 60 second setup means your team can be up and running in an instant.

Lower costs via Cloud-based SIP trunking

Save on your costs, with scalable plans offering unlimited outbound calling for your business and no incoming call charges or rigid contracts required.

Benefit from using our Cloud PBX for your SIP Trunking

When you start using our business phone system to power and distribute your calls, you can side-step the need for any complicated on-premises PBX setups or expensive specialist hardware. All you need with us is an Internet connection.

Grow your phone system with your business


Our VoIP phone system grows with your business. Add more users, extensions or phone numbers at the click of a button. No installation needed.

No maintenance needed with a Cloud PBX


No maintenance required when SIP Trunking with us. Simple and instant setup when you use our VoIP phone system to manage and distribute calls.

Enhanced call management via 24/7 online dashboard


With a Cloud-based SIP provider, 24/7 access to your online dashboard ensures you can easily configure and update settings on the go.

Work remotely with VoIP


Appear as if in the office wherever you are. Powerful Cloud technologies make it effortless to collaborate from any device and location.

Shrink local and international call costs


Shrink your local and international call costs when you make SIP calls with us. Save on installation, maintenance and hardware fees when you use VoIP.

Professional business phone system features


Take advantage of our many business features, including IVR, Call Forwarding, Voicemail, Call Recorders, Email to Fax and more.

SIP Trunk and PBX FAQs

Find the answers to common questions about SIP trunks and our Cloud PBX phone system.

SIP trunking connects a PBX to the web to send and receive calls. Historically, SIP trunks, also known as SIP channels, were the original solution for transitioning legacy on-premises PBXs from analogue to digital calls.

A PBX, or Private Branch Exchange, is an exchange or switch that handles the routing of phone calls between an office and phone network. An on-premises PBX is often a piece of physical hardware that can sit in an office to configure and route calls. While a SIP trunk can be thought of as the trunk of a tree, a PBX can be thought of as its branches. allows you to dispense with an on-premises PBX and efficiently route calls via the Cloud.

A SIP phone system is a phone system that uses Session Initiation Protocol (SIP) to allow voice calls over the Internet.

Originally a SIP trunk could only work with a hardware PBX. Nowadays, modern VoIP systems like can act as a complete solution, trunking and routing calls via the Internet, connecting to smartphones, tablets and desktop computers without the need for specialist physical hardware.

To find out about pricing, simply visit our plans page at SIP trunks are included with all plans. can be used as a hybrid service, working as a SIP trunk to connect your existing on-premises PBX to the web to enable external calls. Alternatively, save on the expense of a physical PBX and use as an all-in-one system to easily route calls via VoIP and the Cloud. Using us as your complete SIP trunking and PBX solution means that your business isn't limited by phone lines, extensions or concurrent calls.

Professional, multi-device SIP phone system

Choose Us For Your SIP Phone System

It's simple to get started with us. If you want to benefit from the full power of our phone system, just choose the plan you need, the number of users you'd like, a local or national number, and checkout online. You can effortlessly configure your call routing via the online dashboard and super-charge your communications with professional features such as IVR call menus, call recording, call queuing and more. Cross-device compatibility ensures that your team can connect with each other via smartphone, laptop or SIP phone in minutes.

If you own existing hardware, like a PBX, SIP trunking setup is a fast and easy process, ideal for no-fuss, easy migration. For businesses large and small, and for teams hybrid, local or remote, our scalable phone system is built from the ground up to help you thrive. Get in touch, or view our plans and join today.

Contact Our Team for More Information

Get in touch to find out more about our phone system, SIP trunking, or to get a quote.

Contact us today!

If you have any questions about our service or want to discuss your communication needs, please contact one of our experts below.

ISO 27001 Business Continuity Accreditation ISO 22301 Business Continuity Accreditation Cyber Essentials Certificate of Assurance G-Cloud accredited by the Crown Commercial Service
ISO 27001 Business Continuity Accreditation ISO 22301 Business Continuity Accreditation Cyber Essentials Certificate of Assurance G-Cloud accredited by the Crown Commercial Service