International SIP Services | Global VoIP Calling by Cerberus Networks

International and National Numbers

International and national numbers give your business a local presence anywhere. Reach customers across the UK and around the world without setting up physical offices. Build trust, expand into new markets, and stay connected with flexible, scalable numbering that grows with your business.

International SIP

Connect offices, teams, and customers worldwide over reliable IP connections and cut costs, simplify infrastructure, and scale fast—without the complexity of traditional phone systems. It’s global voice, made simple.

Inbound Services

Inbound telephony services give you full control over how calls are routed across your business. Easily direct calls between branches, manage traffic, and stay connected even if one location goes offline. With built-in resilience and flexible routing, you keep your phone services running smoothly—no matter what.

Number Porting

Number porting with Cerberus Networks is fast, smooth, and reliable. With years of experience handling everything from single lines to large-scale ports, we make sure your numbers move over quickly and without disruption. Whether you're porting one number or a hundred, our team manages the process end to end—so your business stays connected without missing a beat

MYCLOUD PBX

Provided as a hosted cloud-based service, MyCloud PBX is a powerful business phone system that gives you all the features and flexibility of a modern business telephony soltion, without the upfront costs or per-user charges.

TEAMS TELEPHONY

Integrate cloud telephony and audio conferencing with Microsoft Teams for enhanced productivity and simplified number management.

MYCLOUD VOICE

A flexible and cost-effective replacement for fixed-line PSTN telephone services, MyCloud Voice provides the features you need with cost effective rental and included voice calls. The service works with DECT wireless handsets, dedicated ATAs, router-integrated ATAs and software clients to ensure maximum compatibility with any hardware or software you already have.

SIP TRUNKS

Any business with an IP-capable PBX can switch to Cerberus SIP trunks and immediately benefit from a more flexible, less expensive and more resilient phone service. Our SIP trunk services include call bundles on UK geographic and UK mobile calls.

MyCloud PBX is a powerful cloud-based business phone system that gives you all the features and flexibility of a modern business telephony soltion, without the upfront costs or per-user charges.

Ideal for all sizes of businesses, all users have a common feature set with no add-on licenses or bolt-ons - just simple all-inclusive licensing.

Choose from a range of a business handsets from multiple vendors or use existing hardware, if compatible. You also have the option to use an advanced softphone on your Windows PC, Mac, iPhone or Android device, at no extra cost.

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TRUSTED ADVICE AND GREAT SERVICE

"We picked MyCloud PBX for the best features and for the cost savings. I’m pleased to say it has worked out really well. We have a better system and spend much less. We now recommend Cerberus to our own clients when they ask us how they can save money or do more with their phones."

Find out how MyCloud PBX has delivered flexible and highly reliable business communications for PJT & Co.

READ THE CASE STUDY

With many years of delivering telephony and communications services, Cerberus is a safe pair of hands for all your communications requirements. From simple PSTN replacement to advanced contact centres with international numbering, call recording and reporting, we have it covered.

With a team of dedicated account managers, an experienced and friendly Operations team, backed up by our 24x7 technical team, we are dedicated to providing the highest levels of services for all our customers.

Fortinet UTM

Managed IT

MyCloud Voice

MyCloud Hosted Security

Cerberus has worked with Fortinet for over 10 years. As the world leader in unified threat management, the FortiGate Unified Threat Management platform combines the FortiOS™ security operating system with FortiASIC processors to provide a comprehensive and high-performance array of security and networking functions.

Consistently ranked in the Gartner Magic Quandrant Reports as leading the market with both technology and execution, Fortinet sets the bar for features and reliability. Fortinet solutions from Cerberus are backed with 24x7 support and provide an end-to-end network security solution - from design to implementation to support and maintenance.

Expert IT services from a trusted partner

Supplementing, supporting, consulting and collaborating; Cerberus' range of IT services provides exactly what your business needs, when they need it.We give you access to the very latest enterprise level technology, consultancy and managed IT support services, all tailored to your exact needs.

Get in touch now to see how Cerberus can help you empower your team and make the most of your IT investment.

Simple, cost-effective SIP telephony replacement for PSTN

With the accelerating switch-off of the national fixed-line telephony network, there is a need for a simple, flexible and cost-effective replacement for fixed-line PSTN telephone services. That is why Cerberus has introduced MyCloud Voice.

MyCloud Voice provides the features you need with cost effective rental and calling. We have also used a platform that is compatible with a very wide range of hardware and software including wired handsets, DECT wireless handsets, dedicated ATAs, router-integrated ATAs and software clients to ensure maximum compatibility with any hardware you already have.

MyCloud Hosted Security provides hosted security and management and is perfect for clients securing multiple locations, remote sites or who need the flexibility offered by a cloud-based service.

With 24x7 management services, reporting and analytics and advanced monitoring, all delivered on high-availability firewall clusters, our hosted security services provide peace of mind as well as advanced network management.