Calls - 250m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster
Enhanced Signal Reception
Experience crystal-clear voice calls and quick text message delivery with the Calls - 250m2 Mobile Signal Booster. Designed specifically for Telia, Elisa, DNA, Tele Finland, and Alcom, this booster operates on a 900MHz frequency, ensuring that you stay connected in medium-sized areas, up to 250 square meters.
Comprehensive Coverage
Transform any indoor space, such as homes, cafes, and offices, with a reliable mobile signal. The booster significantly improves coverage, letting you enjoy smoothed conversations and uninterrupted messaging. No more dropped calls—just seamless communication!
Complete Installation Kit
Enjoy hassle-free setup with our all-inclusive kit! The package contains everything required for installation, including an external aerial, booster unit, indoor antenna, cables, and a power adapter, allowing you to boost your signal effortlessly.
User-Friendly Installation
The installation process is straightforward and straightforward. Begin with a loose setup to determine optimal placements for antennas. Follow our easy-to-understand instructions to get your device up and running in no time!
Upgrade Options Available
Maximize your signal strength with customizable upgrade options! Choose a higher gain external antenna for better performance or add a lightning surge protector to safeguard your system from electrical surges, ensuring longevity and reliability.
Support for Multiple Users
Effortlessly connect up to 25 users simultaneously with the Calls - 250m2 booster. Perfect for families or businesses, this booster ensures everyone can enjoy a strong and reliable mobile signal without any interruptions.
It boost Calls signal on 900MHz frequency, the frequency used in Finland used by mobile networks to deliver their mobile services: 2G (also known as GSM). It work on 900Mhz (Band 8) frequency for improving Telia, Elisa and DNA etc ALL mobile carrier networks 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 | Finland |
Boost All On | Telia (2G) Elisa (2G) DNA (2G) Alcom (2G) Tele Finland (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 a mobile signal booster? - A mobile signal booster is a device that helps improve weak mobile phone signals. It receives signals from outside and amplifies them, making your phone calls clearer and helping you send texts more easily.
- How does the 250m2 mobile signal booster work? - The 250m2 mobile signal booster works by capturing mobile signals from outside your home or building and boosting them for better use inside. This means you can enjoy strong calls and texts even in areas with weak signals.
- Can I use the booster in all areas of my home? - Yes, the 250m2 mobile signal booster can cover areas up to 250 square meters. It's suitable for medium-sized homes, cafes, and other spaces where you want stronger signals for calls and texts.
- Is installation difficult? - Not at all! The mobile signal booster comes with everything you need for installation. It includes clear instructions, and you can do a loose install first to find the best spot for your antennas and cables.
- Do I need a good signal outside to use the booster? - Yes, a mobile signal booster can only amplify existing signals. If there is no signal outside, the booster won't work. Make sure you have some signal in your area for it to be effective.
- Who can benefit from the booster? - Anyone who struggles with weak mobile signals can benefit from the booster! This includes people living in rural areas, those working from home, or anyone who wants a better texting and calling experience.
- How do I know if I need an external aerial upgrade? - If your phone shows only 1 or 2 signal bars outside, you might need an external aerial upgrade for better performance. The upgrade can help improve the signal more effectively in such cases.
- What if I face issues with the booster? - If you have any problems with the mobile signal booster, you can reach out to our support team for help. We’re here to assist you with any technical issues or queries you might have.
- Is the booster safe to use? - Yes, mobile signal boosters are safe to use. They meet international safety standards, and there is no harmful radiation or health risks associated with them. You can use them worry-free!
- Can I connect multiple devices to the booster? - Absolutely! The 250m2 mobile signal booster can support up to 25 devices simultaneously. This is great for homes or small offices where multiple people need to use their phones at the same time.
