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Cel-Fi is the only Smart Signal Booster approved and authorized by AT&T Wireless and T-Mobile

Cel-Fi Smart Signal Booster is authorized by one hundred and thirty nine carriers worldwide in seventy countries at the time of this survey, for use on their mobile networks. What is Cel-Fi? It is currently the only Smart Signal Booster approved and authorized by AT&T Wireless and T-Mobile USA for use on their networks. Unlike most analog boosters, it boosts mobile coverage within large homes and office buildings of upto 13,000 square feet. It eliminates dropped calls and static during phone conversations. Like us, it is obsessed with finding coverage: Unlike previous generation boosters, it is powered by an intelligent processor core that is designed to detect interference and adjust the coverage area accordingly, so as to provide the largest possible coverage area. Like traditional boosters, it is composed of two units that connect wirelessly: Window unit brings wireless-in and pushes wireless-out to the coverage unit to boost signal from only one bar to five bars (it needs just one bar of 3G or 4G coverage) - Minus the installation hassles! See video to see how easy it is to install...

However, unlike traditional legacy boosters, it provides high capacity coverage: 60 simultaneous users, 4 to 20 times higher download speed. Provides maximum gain of 100dB or 1000 times more gain than the industry average. Its powerful internal antenna gain is five times more powerful than the best smartphone available! Hands down, it is the most sophisticated and advanced booster in the market. Furthermore, it is a breeze to install - No need for outdoor antenna, cables and other installation. Just plug Cel-Fi in and it works! With insanely simple installation in five minutes this plug and play Cel-Fi configures itself automatically. It is the only carrier-specific booster available in the market today and the one and only booster approved by the FCC in the “provider specific” category. It offers 100dB, or 1,000 times more gain than the most powerful wideband analog booster. It uses a next generation all-digital advanced technology with ARES, the Cel-Fi processor with six-cores RISC baseband processor, which is 5 times more powerful than previous generation digital signal processors.

Cel-Fi Cell Phone Signal Booster Benefits and Features

Coverage Everywhere Everytime
Coverage Everywhere,
Every Time!

Use your phone where you need it. Clear and reliable 3G or 4G voice and data. Goodbye dropped calls!

13,000 square feet of coverage
13,000 square feet
of mobile coverage

Ideal for a building, Cel-Fi has a large coverage area - up to 13000 Sq. Ft. (1,235 m2).

Helps Multiple Simultaneous Users
Helps Multiple Users

High capacity signal booster handles many simultaneous calls and high speed data.

Unbelievably Simple Installation
Unbelievably, Unarguably,
Simple Installation!

Power up Cel-Fi - That is all you need to do! Cel-Fi so smart that it auto-adapts itself to your environment.

Authorized by AT&T and T-Mobile
Authorized by
AT&T and T-Mobile

Only signal booster authorized by T-Mobile, AT&T and currently 146 other cellular carriers around the world.

Plug and Go - 100%!
Plug and Go!
100% Plug and Play

The easiest installation ever. Simply power the Window and Coverage Unit - Cel-Fi is ready to go to work!

Built-in Internal Antennae
Small, But Powerful
Internal Antennae!

Best of four built-in high gain directional antennas automatically get selected for best coverage.

One Bar Needed To Function
Only One Bar Required
To Get Upto Five Bars!

1 bar of 3G or 4G cell phone voice or data signal near a window is all you need! Cel-Fi does the rest.

wireless cellular extender
Totally Wireless
Cellular Extender

The Window Unit and the Coverage Unit communicate wirelessly, which makes setup extremely easy because no wired installation needed.

Automatic Configuration
Configuration is

Cel-Fi smart cell phone signal booster auto configures itself, depending upon obstructions that exist in your environment.

Extends Battery Life
Extends Cell Phone
Battery Life!

When your cellphone no longer has to use its power to constantly try to detect signal from a far away cell site, it lasts longer and requires less re-charging.

Highly Advanced Technology
Highly Advanced
Latest Technology

Powered by 2 custom designed, massively parallel, realtime and highspeed processors with 38 digital signal processors.

Why buy signal booster from us?

Cel-Fi Advanced Technology:
Cel-Fi is a new generation of all-digital Signal Boosters and the only booster approved by the FCC for 100dB gain.  Our Cel-Fi boosters are designed using the most advanced technology and are powered by two custom-made 6-core processors allowing for 1000 times more gain than traditional boosters and provides coverage to 13,000 sq. ft.  The only ‘Smart Booster’ of its kind, Cel-Fi decodes the setup channel, adapts to future network changes on its own and even makes the carrier network more efficient. 
How does Cel-Fi work:
The Cel-Fi Network Unit captures the weak signal that reaches the building, improves it and retransmits the signal indoors via the Coverage Unit. This allows your AT&T and T-Mobile clients to experience a strong cellular connection with no signal interference-eliminating dropped calls and in-building dead zones.  Cel-Fi is the only cellular booster authorized for use on AT&T and T-Mobile networks. 
Cel-Fi boosts your signal strength indoors for 3G, 4G LTE Voice and Data without the need for external antennas or cables.  We made Cel-Fi worry-free by making it insanely simple to install, providing you with a true plug and play booster that is an ideal solution for your clients office or home.  Multiple units of Cel-Fi can be installed for larger projects with no interference issues from booster to booster or the carrier’s network.   With our 100dB gain, clients who are experiencing weak network coverage will go from 1 bar to 5 with wide ranging coverage guaranteed.  

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