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What are our advantages?
To solve the problem of signal loss under extreme conditions, the T series booster directly amplifies weak signals outdoors to reduce the problem of signal attenuation due to cable transmission.
What makes our products unique?
Designed and developed the ‘Signal Advisorâ APP in the market. Visual LCD display, equipped with a variety of thoughtful accessories to help you easily install the booster.

INVCALL Business Serie Booster
Specially designed for large areas to solve the problem of weak signals in companies, factories and villas.

INVCALL F Series
New design home booster kit – built-in indoor antenna effectively expands coverage.
ăGreatly Enhance Cell Phone SignalăCell phone booster Compatible with all U.S. carriers (Verizon, AT&T, T-Mobile etc.) and networks (5G 4G LTE 3G), support Band 2/4/5/12/13/17/25. Enjoy better talk, text, and stream.
ăHigh-PerformanceăCellular signal booster provide maximum signal gain of 70dB, 32X amplify signal, with coverage area of up to 4,500 sq ft. (Please note: coverage area range depends on the outdoor signal level and the building structure of your house.)
ăCarrier-grade Quality Smart DeviceăCellular signal booster uses high-quality smart chip AGC to ensure stable performance, safety and durability. Reflect the working status of the amplifier through the high-definition LCD screen.
ăMulti-Users & DevicesăSupport multiple users & cell devices. Every family member can enjoy better voice quality and faster data speeds.
ăComplete AccessoriesăCell phone booster kits includes window cables to avoid drilling holes in the wall, waterproof insulation tape to protect connectors, and cable management tapes to organize excess cables to make the home tidier.
ăFCC Certification and Reliable Service GuaranteeăThe cell phone boosters are FCC approved, and we offer 30-day money back, 3-month replacement and up to 3-year manufacturer warranty.
ăDesign with LCD Screen and APPăOur company has developed its own APP for customers to use. Customers can check the strongest outdoor signal points, detect the working status of the amplifier and adjust it in real time through APP. It makes the installation more convenient.
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