Calls - 250m2 (A1/Three/T-Mobile) Mobile Signal Booster
Enhanced Signal Strength
Experience crystal-clear voice calls and speedy text message delivery with our Calls - 250m2 Mobile Signal Booster. Designed to amplify the 900MHz frequency used by A1, Three, and T-Mobile, this device ensures you can communicate without interruptions. Perfect for homes, cafes, and restaurants, it provides reliable coverage for an area of up to 250 square meters.
Wide Compatibility
Our signal booster is compatible with a variety of mobile networks including A1, Three, T-Mobile, and others, ensuring that you have dependable service no matter your provider. This versatility makes it the perfect solution whether you're in a bustling cafe or a quiet home.
User-Friendly Installation
Installation is a breeze! The package includes every component you need—outdoor aerial, indoor aerial, cables, and power adapter. Simply follow our easy steps to boost your mobile signal in no time, without the need for professional assistance.
Supports Multiple Users
Say goodbye to dropped calls! This booster supports up to 25 simultaneous connections, making it an ideal choice for busy families or work environments. Everyone can enjoy improved signal strength at the same time.
Customizable Options
Tailor your booster experience with upgrade options such as longer external cables and higher gain outdoor antennas. These enhancements ensure you receive the best possible signal quality, adapting to your specific needs.
Lightning Protection Available
Protect your investment with our optional Lightning Surge Protector. Designed to shield your equipment from voltage surges due to lightning strikes, this additional feature provides peace of mind, ensuring your booster remains operational during adverse conditions.
It boost Calls signal on 900MHz frequency, the frequency used in Austria used by mobile networks to deliver their mobile services: 2G (also known as GSM). It can boost all network on A1, Three, T-Mobile, Orange, Bob, Eety, HoT, Lycamobile, Telering, Vectone and Yesss! for improving Voice Calls & Text signal. The booster is the best suitable for medium size, boost indoor signal coverage up to 250 m2, perfect for home, cafes, restaurants, pubs, clubs and more.
No Miss Important Calls
SMS Text Messages Quickly
Reception Up to 250 sq.m.
Upgrade External Cables
If our standard package 10 meter external cable length is not enough to cover your area you have an upgrade option.
Upgrade External Aerial
Higher Gain Yagi Antenna - For better performance it's a must if indoor your phone with 1/2 signal bars. Or get this upgrade if outdoor best signal strength in the following range:2G (GSM) -76 to -90 dBm
3G (UMTS) -80 to -94 dBm
4G (LTE) -97 to -105 dBm
How to shown dBm reading on phone? Check Quick Start Guide

Upgrade Protector
Lightning Surge Protector - Designed to Protect your equipment from high amperage surges due to lightning strikes on aerials or masts in close proximity to the device. This unit is rated for 18KA of current surge and is very simple to install on any device.
Specification
Application & Bands | Voice Calls & Text (Band 8) |
Country | Austria |
Boost All On | A1 (2G) Three (2G) T-Mobile (2G) Orange (2G) Bob (2G) Eety (2G) HoT (2G) Lycamobile (2G) Telering (2G) Vectone (2G) Yesss! (2G) |
Users Supporting | 25 Simultaneously |
Band | Single Band 8 |
Frequency | 900MHz |
Gain(dB) | Uplink Gp≥50; Downlink Gp≥55 |
Up-link | 890~915 MHz |
Down-link | 935~960 MHz |
Export Power(Po) | ≥10dBm |
Power Adapter | Input: AC 100V~240V 50/60Hz Output: DC 5V |
Kit Includes | 1 x Booster 1 x Outdoor Antenna 1 x Indoor Antenna 1 x Power Adapter 1 x 10 Meters Outdoor Cable |
Expandable coverage by adding a second indoor antenna if the outside signal is strong.

2 Indoor Antennas

3 Indoor Antennas

4 Indoor Antennas

10 Indoor Antennas
Custom your solution:
2 Way Splitter | 3 Way Splitter | 4 Way Splitter | Indoor Cable | Indoor Antenna
How It Works

1
The powerful antenna reaches out to access a voice and 3G, 4G, and LTE data signal, and delivers it to the booster
2
The booster receives the signal, amplifies it, and serves as a relay between your phone and the nearest cell tower.
3
Your devices get increased cell reception, and calls and data are fed through the booster back to the network.
Get stronger signal

Normal Cell Coverage
Dropped calls and slow data are generally caused by three things: distance from a cell tower, building materials in your home or office, or obstruction from tall objects such as trees, topography, and buildings.
Signal Coverage with our booster
Signal boosters increase cell signal by collecting signals with a powerful antenna, delivering those signals to the booster, amplifying the cell signals so your devices receive them, and delivering your device's boosted signals back to the cell tower.Installation
- Connect the indoor antenna to the MS port.
- Connect the outdoor antenna to the BS Port.
- Install the outdoor antenna and keep a minimum vertical distance of 10 meters from the indoor antenna.
- Point the outdoor antenna to the direction where you know there is possibly a higher signal strength from the base station.
- Power on the booster and check the signal strength.
- Adjust the outdoor antenna until you get the best signal strength.
IMPORTANT NOTE:
DO NOT POWER ON THE DEVICE UNTIL YOU HAVE COMPLETED THIS SETUP.
Read more about User Manual Documentation.

Application Scenarios

Home

Office

Garage

Metal Buildings
- What is the Calls - 250m2 Mobile Signal Booster? - The Calls - 250m2 Mobile Signal Booster is a device that helps improve mobile phone signals indoors. It works for various networks including A1, Three, and T-Mobile, boosting voice calls and text messages. It can increase coverage in areas up to 250 square meters, making it ideal for homes, cafes, and other medium-sized spaces.
- How does the mobile signal booster work? - The booster captures the existing mobile signal from outside your home or cafe, amplifies it, and then rebroadcasts it inside. This means you can enjoy clearer calls and faster text messages without interruptions. However, if there is no signal outside, the booster will not be able to help.
- Is the installation of the booster easy? - Yes, the installation of the Calls - 250m2 booster is designed to be straightforward. It comes with all the necessary parts and accessories. You just need to place the outdoor antenna in a place with good signal, run the cable to the indoor booster, and connect everything together. A 'loose' installation can be done first to find the best placement.
- Can I use this booster with any mobile phone? - The Calls - 250m2 Mobile Signal Booster supports most mobile phones that operate on the 900MHz frequency. This includes many popular brands and models. As long as your phone works on that frequency, it should benefit from the boosted signal.
- What do I do if I have a weak signal outside? - If there is a weak signal or no signal outside, the booster won't work effectively. It is important to check your outside signal using your phone before installing the booster. You can use apps or specific codes on your phone to check the signal strength.
- What if I need a longer cable? - The booster kit comes with a standard 10-meter external cable, but you can choose to upgrade for longer cable lengths if needed. This is helpful if you need to run the cable further from the outdoor antenna to the booster indoors.
- Do I need a special antenna for better signal? - If your phone shows only 1 or 2 signal bars, it’s recommended to upgrade to a higher gain external antenna. This will help in boosting your signal even more, especially if you have a good signal outdoors.
- What is the Lightning Surge Protector? - The Lightning Surge Protector is an optional upgrade that helps safeguard your signal booster from damage caused by power surges from lightning strikes. It's easy to install and protects your equipment to ensure long-lasting performance.
- How many users can connect to the booster at once? - The Calls - 250m2 Mobile Signal Booster supports up to 25 users simultaneously. This makes it great for use in homes where multiple people need to use their phones at the same time.
- What is included in the purchase? - When you purchase the Calls - 250m2 Mobile Signal Booster, you get everything needed for installation: the booster unit, outdoor antenna, indoor antenna, power adapter, and a 10-meter outdoor cable. This makes it an all-in-one solution to enhance your mobile signal.
