About

Cel-Fi by Nextivity

The most advanced technology for improving in-door mobile coverage

Cel-Fi smart signal boosters from Nextivity are the best solution on the market for addressing the universal challenge of poor in-door mobile coverage.

The Cel-Fi mobile signal booster range includes solutions for apartments or flats, small and large residential properties, storefronts, offices and commercial properties as well as large enterprise environments like distribution centres, government buildings and hospitals.

Cel-Fi products are designed to improve mobile signal strength with up to 100db gain for 3G / 4G / 5G in voice and data.

The Cel-Fi commitment is to protect the operator’s network, deliver the best mobile performance, and be the easiest solution to install.

How it works

Cel-Fi mobile signal boosters improve signal between a mobile phone and a mobile network tower, allowing you to have clear voice conversations and a stable data connection. An external antenna collects the best mobile signal from outside and transmits it to a mobile signal booster unit, strengthening the signal and broadcasting it internally.

Cel-Fi automatically adjusts to the size of the indoor environment and leverage the advanced signal-processing and radio design of Nextivity’s IntelliBoost chipset to deliver the industry’s highest gain at the lowest cost per square foot.

Cel-Fi is available for EE, O2, Vodafone, Three and all Mobile Virtual Network Operators. The Cel-Fi commitment is to protect the operator’s network, deliver the best mobile performance, and be the easiest solution to install.

Cel-Fi products are licence-exempt and fully comply with Ofcom’s UK Interface requirement 2102 (IR2102) (UK) and ComReg S.I.No.283 of 2018 (Ireland).

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Case Studies

Become a Cel-Fi Reseller

Frequency Cel-Fi Resellers enjoy a range of benefits including competitive pricing on bulk PO’s, sales and marketing support and a dedicated support package. With an ever-increasing demand for legal solutions to mobile phone signal problems, this programme is the ultimate service choice!

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Product range

Cel-Fi PRIME is a simple mobile phone signal booster that strengthens your 3G / 4G /5G signal coverage. With 80dB of gain, Cel-Fi PRIME will improve mobile signal coverage and reduces device power requirements to extend battery life.

PRIME offers plug-and-play mobile signal coverage for a flat, storefront, kiosk, apartment, offices or similar space, enabling clear and reliable connections within a coverage area of up to 100m2 (approximately 1,000 sq.ft.)

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The Cel-Fi SOLO Smart Signal Booster is designed to solve mobile coverage problems for voice and data. With up to 100dB of gain, it is the most powerful carrier-grade solution available.

The Cel-Fi SOLO covers up to 1,500 m² of indoor space per system and is quick and easy to install. It includes a whip antenna and patch antenna which can be used to get the system up and running in minutes.

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The Cel-Fi GO X Smart Signal Booster is a premium mobile phone signal booster that strengthens your 3G / 4G /5G signal coverage. It is the first carrier-class indoor mobile coverage solution to feature industry-leading 100dB signal gain and Nextivity’s unconditionally network safe guarantee.

Cel-Fi GO X leverages the award-winning Intelliboost signal processing to deliver the industry’s largest coverage footprint with the best voice and data wireless performance.

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The Cel-Fi GO M is an evolved smart mobile signal booster that can amplify mobile signals whilst on the road or on board. The Cel-Fi GO M uses Nextivity’s award-winning, network-safe technology to automatically adapt to the moving environment and boost 3G and 4G for voice and data.

The Cel-Fi GO M is the first carrier-class IP65 weather resistant mobile coverage solution. The rugged design combined with a thin film coating across the entire PCB assembly enables the device to withstand harsh conditions including dust and water exposure.

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Cel-Fi QUATRA is a scalable in-building mobile system for delivering high-quality signal in venues up to 200,000 sq. ft for 3G / 4G /5G.

This all-digital solution is cost-efficient and easy to deploy. It combines the best of active DAS and Smart Booster technologies that have been widely adopted by carriers around the world, setting a new standard in signal boosting capabilities.

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Glance-able view to the state of your Cel-Fi environment, including the Boost Strength indicator

Change the default Network Operator, select the booster technology (3G, 4G), setup an external antenna, configure the antenna position, and more.

Get real-time data and performance metrics for troubleshooting devices

Keep your Cel-Fi Booster up-to-date as new software versions become available

Easily activate and register your Cel-Fi Booster.

testimonials

Cel-fi Quatra Saves the Office Move

The Welsh Ambulance Services NHS Trust moved to a newly refurbished, contemporary two-storey office block on St Asaph Business Park in Ty Elwy in May 2019. It was only once we moved in that we realised that mobile signal coverage for Vodafone and EE were practically non-existent. In our line of work, staff rely heavily on the use of their mobile devices to perform their duties and this put us at great risk.

Frequency Telecom commissioned and installed the Cel-Fi QUATRA mobile signal booster within days, without the need for any operator licence. Vodafone and EE users reported a steady 4 to 5 bars of mobile signal in key areas of the business. Productivity soared as staff were able to perform their duties optimally.

We’re very happy with our Cel-Fi deployment to enhance the Vodafone network in our HQ. We were very impressed with the complete package provided by Frequency Telecom and Cel-Fi, the manufacturer.

Tony Raine,
Network & Telecommunications Manager Welsh Ambulance Services NHS Trust

Connecting Health Staff When They Need It Most

When we built the new wing of Bronglais General Hospital, it was apparent that the EE mobile signal was poor and staff were complaining of not being able to use their mobile phones. We had previously tried network provided boosters, but they didn’t provide to the scale of building and volume of users required. WiFi calling was not effective enough resulting in further complaints from staff and other hospital users on EE.

Following a site inspection, Cel-Fi QUATRA mobile signal boosters were fitted. This solution resolved the EE mobile coverage issues in the existing and new wing of the building. Staff are confident that they are always contactable. Since the system was fitted, the mobile signal has gone from zero to a steady two-three bars.

It’s been a life saver for us. If any of the other Health boards want to ask about the kit, I will be happy for you to forward my email address onto them.

Ian Higgins,
Estates Department RD&SH NHS Trust

When Ofcom Compliance is Non-negotiable

Bucks New University’s educational facility in Aylesbury had very poor mobile phone reception on all operators (Vodafone, O2, Three and EE) within the building and so they asked us to resolve. Of particular importance to the client was the need to deploy a legal solution, compliant with OFCOM regulations (OFCOM SI 2018/399) and which could be used without the need for an operator license. ITC Concepts, working on behalf of Bucks New University, engaged with Frequency Telecom – the leading master distributor of the only OFCOM License Exempt Mobile Signal Boosters in the UK, with a requirement to provide a multi-network mobile signal booster solution.

The Supplier came in at very short notice, carried out an onsite mobile signal survey – which confirmed the concerns, came up with a cost-effective proposal to overcome the issue and in what was literally a couple of weeks, installed the Cel-Fi Quatra solution to enhance the mobile coverage so that mobile devices from any network can now be used within the building with no issues.

Pete Evans,
Infrastructure Technician Hywel Dda University Health Board

From Zero Coverage to 100% Mobile Signal Strength

One of our key serviced offices in Nottingham is in a mobile network blackspot, affecting the whole building and with all 4 of the main UK Mobile networks providing little to no coverage internally. As a result, our customers had been complaining on a daily basis of poor connectivity and difficulty conducting their business.

Having previously tried Wi-Fi calling and network specific boosters, results were intermittent and unreliable, so we needed a robust, corporate solution that required minimum attention from us as landlords and provided our customers with full mobile network coverage over all 4 networks.

Our Supplier provided a full in-depth site survey, recommending that we use their Cel-Fi GO-X products around the building. The results were instantaneous – areas of the building that previously had low – to zero coverage now had full signal strength, resulting in 100% positive feedback and many happy customers! We are now working with the Supplier to improve connectivity at multiple offices Nationwide

Stephen Day,
NW UK IT Manager Pure Offices

Quatra Multi-network Mobile Boosting Soluton for Educational Building

ITC Concepts, working on behalf of Bucks New University, engaged with Frequency Telecom – the leading master distributor of the only OFCOM License Exempt Mobile Signal Boosters in the UK, with a requirement to provide a multi-network mobile signal booster solution.

The Supplier came in at very short notice, carried out an onsite mobile signal survey – which confirmed the concerns, came up with a cost effective proposal to overcome the issue and in what was literally a couple of weeks, installed the Cel-Fi Quatra solution to enhance the mobile coverage so that mobile devices from any network can now be used within the building with no issues.

Ian Evans,
Director ITC Concepts Buckinghamshire New University

Installaton of Cel-fi Go X Improved Indoor Mobile Signal Reception From 1 to 5 Bars

I called Frequency, the UK Distributor for Cel-Fi, and spoke with Colin Giles (Account Manager and Cel-Fi expert), who pulled out all of the stops to understand the mobile signal connectivity issue and its impact on our business.

He recommended Cel-Fi Go X solution that is fully compliant with OFCOM regulations (OFCOM SI 2018/399) and can be used without a licence and does not interfere with other wireless devices.

We only had a limited time to solve the problem, so we not only needed a system that worked, but we needed it fast. Colin and his team did not let us down, implemented the solution within 3 weeks and we can now deliver the right level of connectivity our customers expect.”

Jayne Southall,
CEO Lincolnshire Agricultural Society

Signal salvaged at Henry Construction Headquarters

We moved into a new office in 12 Craven Road, Central London. Despite the central location of the building, there was no mobile signal inside the building. It was very frustrating to step outside into the noisy, busy street to make and receive phone calls. Dropped and missed calls were having a detrimental effect on our business and staff morale.

Frequency presented us with a legal, cost-effective solution to bring us an in-door mobile signal. In less than 1 week, in-door connectivity was provided on EE, Three and O2 networks.

The reception has completely improved. We are delighted with the solution, thank you.