
What is CallSwitch One?
CallSwitch One is a market-leading hosted VoIP telephony platform that provides comprehensive Unified Communications solutions for businesses of all sizes. Developed by Nebula, it offers an innovative and intuitive design with advanced features to make communication effortless. At Barton Telecom Services, we help UK businesses get the most from CallSwitch One, providing setup, support and guidance so teams can easily access mobile and desktop apps, softphones, instant messaging, conference calling and more all from one central platform. As a Nebula Platinum Partner we ensure your CallSwitch One system is fully optimised to enhance productivity, collaboration and connectivity across your organisation.
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Experienced
Over 30 years serving UK businesses
Expert Solutions
Business-grade telecoms tailored to your needs
Trusted Reputation
Over 100 five-star rated Google reviews
Personalised Service
No outsourced call centres, just people who genuinely care

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CallSwitch One PBX Hosted Telephony
CallSwitch
One Apps
CallSwitch One’s softphones allow you to take your calls and communication channels with you, wherever you go. With mobile and desktop versions of the app, you can make and receive calls, manage your voicemails, and even view call history on your mobile device using your work phone number.
Benefits of Using CallSwitch One For Your Business
Flexibility & Mobility Across all Devices
Including: Desktops, Laptops, Tablets and Smartphones Stay connected wherever you are. No matter if you are using Desktops, Laptops, Tablets or Smartphones, your team can work seamlessly from the office, at home, or on the move.
One Centralised Platform
Unified communications through one centralised platform, the ‘CallSwitch One’ App. Includes: Voice calls, Video calls, Instant messaging, File sharing and more
Scalability
Easily add or remove users as your business grows, without the need for complex IT setups or downtime.
Advanced Call Management
Manage calls effectively with intelligent call routing, voicemail, call queues and auto-attendants. Ensure every call reaches the right person, every time.
Security and Compliance
Protect your business communications with secure, compliant cloud infrastructure. All data and calls are safeguarded, giving you peace of mind.
Integration Capabilities
CallSwitch One connects seamlessly with Microsoft Teams, leading CRM systems and other essential business tools. If you're using desk phones, softphones, or mobile apps, your team can collaborate without switching between platforms.
Collaboration & UCaaS Advantage
Enable teams to communicate in the ways that work best for them all within one platform. Call recording and wallboards help you monitor performance and maintain high productivity across your organisation.
Endpoint Flexibility
Choose the devices that fit your team’s workflow. From traditional IP desk phones to softphone clients and Microsoft Teams, CallSwitch One adapts to the way you work.
CallSwitch User Guides
Get the most out of your CallSwitch One system with our easy-to-follow user guides. If you’re using mobile or desktop softphone apps, these guides help you navigate the apps and make your day-to-day communication effortless. Even if you’re new to cloud telephony, these guides are designed to make everything straightforward, so you and your team can stay connected no matter where you are.
Nebula Platinum Partners

What areas do Barton Telecom Services cover?
Whilst being based in Earls Barton, Northamptonshire, Barton Telecom provide telecom services nationwide.
Across our 30+ years of providing telecoms support, we’ve been lucky enough to work on a variety of jobs across Northamptonshire, Buckinghamshire, Bedfordshire, Oxfordshire, and the wider Midland areas.
We also offer a nationwide service, having worked on telecom projects in the North of England, Wales and even Scotland.
No matter where you’re based in the UK, Barton Telecom is ready to deliver reliable telecom support to help your business stay connected and streamline communications.
CallSwitch One FAQs
TelcoSwitch (now Nebula) and CallSwitch are not the same, but they are closely related. TelcoSwitch is the company, while CallSwitch is one of their product offerings. For more information around CallSwitch and CallSwitch One, or to learn more about what TelcoSwitch can offer, feel free to contact us today.
We offer full support to any of our customers that opt to use CallSwitch One, or any other VoIP/hosted telephony software. We pride ourselves on our customer service, especially when our customers are migrating to a cloud-based system for the first time.
- Desk phones from a range of leading manufacturers, contact us to see if you phones are compatible
- Smartphones (iOS and Android) through the CallSwitch One mobile app
- PCs and Macs through using the CallSwitch One PC softphone
CallSwitch One is a cloud-based system, so reliable internet is essential. Our experts can check your broadband and see if you have sufficient download and upload speeds, low latency and minimal jitter. This helps maintain high-quality voice and video calls.
If you’re using physical handsets, your network should support PoE (Power over Ethernet) and be capable of prioritising voice traffic for optimal call quality.
You can manage the system through a web portal that allows you to add or remove users, configure call routing, monitor performance and access reports from anywhere. It’s intuitive and does not require IT expertise.
Barton Telecom offers full support for all CallSwitch One users, including setup, troubleshooting, training and ongoing help resulting in minimal disruption to your business.
CallSwitch One allows call recording with configurable retention, helping businesses meet compliance or auditing requirements while managing storage and data privacy.
