- Home
- Telecoms
- Cloud Communications
- SIP trunking
SIP trunk solutions for business
Reliable SIP trunking with award-winning customer support and expert guidance
Make the switch to SIP for cost-effective, modern communication solutions
Simplify telecoms with Radius. Transparency, easy switching, and zero service disruption
What is SIP trunking?
Effortless communication, modernised.
It’s the question most have on their minds when they first encounter it: What is SIP trunk? To define SIP trunk, it’s a solution that replaces traditional phone lines with a virtual, internet-based system for voice communication. It’s a cost-effective, flexible option, one that’s ideal for businesses seeking reliable and scalable telecoms.
By connecting your telephone network to the internet, SIP trunking eliminates line faults and reduces costs. With this technology, you benefit from improved reliability, enhanced scalability, and simplified telecom management – particularly when supported by Radius’ award-winning service.
How does SIP trunking work?
Power your business with virtual lines.
A SIP trunking service operates by transmitting voice data over the internet rather than traditional phone lines. SIP trunk architecture uses your existing telephone system or VoIP-enabled devices. SIP channels then route calls digitally, which results in clear, reliable connections.
With a SIP trunk phone system in place, you’ll experience fewer outages, seamless scalability, and other advantages. Whether upgrading or starting fresh, SIP trunking supplies the perfect combination of innovation and simplicity for your communication needs.
How it works
Consult
We take the time to understand the way your business works and how you communicate within your teams and with your customers.
Recommend
We design a solution that’s bespoke to your needs and what’s important to you. We’ll always include futureproofing in your proposal too.
Connect
Our Radius engineers will be on-site to install and roll out your solution, whether that’s a new hosted phone system, cloud migration or mobile phone and SIM distribution.
Support
We’ll introduce you to your account manager and support contacts so you always have someone to call on. We’ll also let you know how your users can get support.
Get started
The benefits of SIP trunking
Cost efficiency
SIP trunks help you to instantly reduce costs by eliminating the need for traditional phone lines, where you can then consolidate voice and data into one system.
Scalability
You can easily add or remove a SIP trunk line as your business changes shape. This is all done without expensive and obtrusive infrastructure changes.
A reliable service
A SIP trunk solution is known for being a reliable route to take. Enjoy fewer outages with internet-based communication and built-in failover options.
Flexible approach
There’s no need for a complete overhaul. You can keep your existing numbers and integrate SIP with your current telecom system seamlessly.
Enhanced call quality
With the power of a stable internet connection, it’s possible to benefit from crystal-clear audio when utilising modern VoIP technology.
Simplified management
Get more control over your company’s communication. Streamline operations with one transparent bill and centralised telecoms under Radius.
Why use SIP trunking?
Upgrade your telecoms. Simplify your business.
By replacing traditional phone lines with internet-based solutions, SIP trunking revolutionises business communication – and that’s not an exaggeration. It is an ideal option for companies aiming to cut costs, improve call quality, and embrace scalable technology. It’s also suitable for all business sizes, whether you’re a fresh startup or established enterprise.
Enhanced reliability. Reduced downtime. The ability to expand your telecom capacity without the hassle of physical lines. SIP trunking offers unmatched flexibility that ensures you’re always connected.
Choose Radius for your SIP trunking needs
Expert support for seamless communication.
At Radius, we specialise in delivering custom SIP trunking solutions to match your business requirements. From consultation to implementation, our award-winning team makes the transition a smooth one. That means no disruption to your current operations.
How can we provide reliable service every step of the way? A dedicated account manager, industry-leading SLAs, and UK-based engineers support our efforts for your SIP trunking needs. That’s not all. Our ample product portfolio allows us to integrate telecoms and IT under one roof, saving you time and effort.
Frequently asked questions
Can’t find an answer to your question? Talk to the Radius customer support team on 0330 818 5000. We’re here to help you with any questions or concerns you may have.
What are SIP trunks used for?
How to setup a SIP trunk?
How many calls can a SIP trunk handle?
Is SIP trunk the same as VoIP?
Partnership
Why choose Radius?
With innovative solutions built around the needs of our customers, we've established an international reputation for helping businesses grow sustainably.
Expertise
Our team has over 34 years of experience helping more than 400,000 customers globally.
Trust
We are an internationally-acclaimed provider with numerous awards for our products and services.
Choice
Choose from our range of fleet, mobility and connectivity solutions that can be tailored to suit your needs.
Solutions
Use our award-winning technology and services to save your business time and money.
Need help?
Can’t find what you are looking for?
The customer support team at Radius has a global reach with over 50 offices to offer local contact with an international presence. Let us know how we can help.
Contact us
