CallSwitch One

Unified Communications.
Simplified.

CallSwitch One Supported by Cleartwo

CallSwitch One is a cloud-based business phone system, developed by Nebula and trusted by thousands of UK businesses. It brings calls, messages, video meetings, and team communication together in one simple platform, accessible from any device, anywhere.

Cleartwo is an authorised reseller of CallSwitch One. We supply, set up, and fully support the system on your behalf, so you get a market-leading phone solution. We are your single point of contact for everything, from your first call with us to your ongoing day-to-day support.

No complicated hardware. No long-term contracts. Just a reliable phone system delivered and looked after by people who genuinely care.

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

    Request A Quote

    Please fill out our quick request a quote form, and we'll get back to you shortly.

    Which telecom service do you require? *


    • Business Phone Systems & VoIP


    • Business Broadband


    • Business Mobile Phones


    • Business WiFi & Data Cabling


    • Microsoft Teams Voice


    • Something Else

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    About Your Requirements

    Fill out our quick request a quote form, then we'll get back to you within 24 hours.

    How many employees does your company have? *


    • 1 - 10


    • 11 - 50


    • 51 - 90


    • 100+

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    Your Contact Details

    And finally, let us know your preferred contact details so we can send you your quote.

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    CallSwitch One PBX Hosted Telephony

    CallSwitch One is Nebula’s cloud-based PBX and unified communications platform. Voice calls, instant messaging, softphones, and video conferencing, all in one place. Scalable, reliable, and easy to manage with no coding required. Cleartwo supplies and supports CallSwitch One for UK businesses, getting you set up and running from day one.

    CallSwitch One Apps

    Take your business number wherever you go. The CallSwitch One mobile and desktop apps let you make and receive calls, manage voicemail, and view call history, all from your smartphone or computer. At your desk or out on the road, you stay connected using your work number.

    Benefits of Using CallSwitch One For Your Business

    Flexibility & Mobility Across all Devices

    Your team can make and receive calls from desktops, laptops, tablets, and smartphones. Whether they are in the office, at home, or on the move, they stay connected without missing a beat.

    One Centralised Platform

    Everything your team needs is in one place. Voice calls, video calls, instant messaging, and file sharing, all through the CallSwitch One app. No jumping between tools or apps.

    Grows With Your Business

    Add or remove users as your business changes. No complex IT setups, no downtime, and no hassle. CallSwitch One scales with you.

    Smart Call Management

    Route every call to the right person, every time. Set up auto-attendants, call queues, hunt groups, and voicemail to keep your business running smoothly.

    Security and Compliance

    Built In Your calls and data are protected by secure, compliant cloud infrastructure. Everything is safeguarded so you can focus on your business with complete peace of mind.

    Seamless Integrations

    CallSwitch One connects with Microsoft Teams, leading CRM systems, and other essential business tools. Your team can collaborate without switching between platforms.

    Collaboration and Performance

    Tools Enable your team to communicate in the ways that work best for them. Call recording and live wallboards give you real-time visibility of performance, helping you maintain productivity and high service standards across your organisation.

    Works on Any Device

    From traditional IP desk phones to desktop softphones and mobile apps, CallSwitch One adapts to the way your team works. Choose the devices that fit your workflow.
    Let's Discuss CallSwitch One

    CallSwitch User Guides

    New to CallSwitch One? No problem. Cleartwo provides easy-to-follow user guides to help you and your team get up and running quickly.

    Whether you are using the mobile or desktop app, our guides walk you through everything in plain English. No technical knowledge needed.

    Contact Us

    Getting Started with Cleartwo is Simple

    No long waits. No complicated setups. No jargon.
    We get your business up and running on CallSwitch One quickly and smoothly. Our team handles everything from start to finish, so you can focus on what matters most, running your business.

    Step 1: Tell us about your business and what you need.
    Step 2: We recommend the right setup and provide a clear quote.
    Step 3: Cleartwo installs, configures, and tests everything for you.
    Step 4: Your team is live, connected, and fully supported.

    What Areas Does Cleartwo Cover?

    Cleartwo provides business phone systems and VoIP solutions to businesses across the whole of the UK.

    Whether you are a small business looking for a cloud phone system in London, a growing company searching for a VoIP provider in Manchester, or an organisation needing a hosted telephony solution in Birmingham, Cleartwo is here to help.

    We work with businesses in major cities delivering reliable, fully managed communication solutions. No matter where your business is located, Cleartwo makes it simple to get set up with a cloud-based phone system that works for your team.

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    FAQs

    What exactly is CallSwitch One?

    CallSwitch One is a cloud-hosted phone system. It lets your team make calls, send messages, and communicate from any device, over the internet. No traditional phone lines needed.

    Why buy CallSwitch One through Cleartwo?

    As an authorised reseller of CallSwitch One, Cleartwo gives you a dedicated UK team who handles your setup, manages your account, and supports you ongoing. Cleartwo is your single point of contact for everything. No generic helplines, no being passed around.

    What internet connection do I need?

    A reliable broadband connection is all you need. Our team will check your speeds before setup to make sure everything runs perfectly.

    Can I keep my existing phone numbers?

    Yes. We can port your existing business numbers across to CallSwitch One so there is no disruption.

    How easy is it to manage?

    Very easy. You get access to a simple web portal where you can add users, change call routing, and view reports. No technical knowledge required.

    What support does Cleartwo provide?

    Our UK helpdesk is on hand for setup, training, troubleshooting, and ongoing support. You will always speak to someone who knows your system.

    Looking for a VoIP phone system near you?

    Get in touch with Cleartwo today for a free consultation. We will have your business connected quickly, professionally, and without the stress.