Calls - 250m2 (Sun Cellular) Mobile Signal Booster
Enhanced Signal Coverage
The Calls - 250m2 Mobile Signal Booster is engineered to amplify the 1800MHz frequency, providing robust indoor coverage of up to 250 square meters. Perfect for homes, cafes, restaurants, and clubs, it ensures you stay connected, no matter where you are indoors.
Clear Voice and SMS
Experience crystal-clear voice calls and seamless SMS messaging with our innovative signal booster. The technology enhances connectivity, enabling you to send and receive messages without interruptions, ensuring you never miss an important conversation again.
User-Friendly Installation
Our signal booster kit includes all the necessary components for easy installation. With a detailed setup guide, you can effortlessly install the outdoor antenna, cables, and indoor booster unit, ensuring a hassle-free experience from start to finish.
Improved Signal Quality
Say goodbye to dropped calls and weak signals. The Calls - 250m2 booster ensures improved signal strength, enhancing your mobile device's performance by allowing up to 25 simultaneous users. It's an ideal solution for both personal and small business needs.
Optional Upgrades Available
Customize your signal booster experience with available upgrades such as longer external cables and high-gain antennas. These enhancements allow you to tailor the system to suit your specific signal needs, optimizing performance based on your environment.
Safety and Protection
Protect your investment with our optional lightning surge protector. Designed to shield your equipment from high amperage surges, this safety feature is vital for installations near aerials or masts, ensuring long-lasting operation and peace of mind.
It boost Calls signal on 1800MHz frequency, the frequency used in Philippines used by mobile networks to deliver their mobile services: 2G (also known as GSM). It work on 1800Mhz (Band 3) frequency for improving Sun Cellular mobile carrier networks Voice Calls & Text signal. It is the best suitable for medium size, boost indoor signal areas 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] (Band 3) |
Country | Philippines |
Boost All On | Sun Cellular (2G) |
Users Supporting | 25 Simultaneously |
Band | Single Band 3 |
Frequency | 1800MHz |
Gain(dB) | Uplink Gp≥55; Downlink Gp≥60 |
Up-link | 1710~1785 MHz |
Down-link | 1805~1880 MHz |
Export Power(Po) | ≥17dBm |
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 designed to improve mobile phone reception, especially for Voice Calls and Text messages. It works by boosting signals for the 1800MHz frequency used by Sun Cellular in the Philippines. This device can cover areas up to 250 square meters, making it perfect for homes, cafes, and more.
- How does the mobile signal booster work? - A mobile signal booster captures weak signals outside and amplifies them, allowing you to enjoy stronger reception indoors. However, it is important to note that if there is no signal available outside, the booster cannot create one—it only amplifies existing signals.
- Who can use the Calls - 250m2 Booster? - This booster is suitable for anyone who uses Sun Cellular in the Philippines and experiences weak mobile signals. It can support up to 25 users at the same time, making it great for families or small businesses.
- How do I install the mobile signal booster? - Installing the mobile signal booster is quite straightforward. First, find a location with good reception for the outdoor antenna. Then, connect the antenna to the booster with the cable, power it up, and attach the indoor antenna. A detailed guide with steps is usually included in the package.
- What if I need longer cables for installation? - If the standard 10-meter cable that comes with the booster is not long enough for your installation, you can upgrade to longer cables. Options for 20m, 30m, 40m, and 50m cables are typically available for purchase.
- Do I need an external aerial? - While using the booster, having a good external aerial can help enhance performance, especially if your phone shows low signal strength indoors. If you are experiencing problems, you might want to consider upgrading to a higher gain aerial.
- What is the cost of the Calls - 250m2 Mobile Signal Booster? - The cost of the Calls - 250m2 Mobile Signal Booster is £169.00 GBP. This price generally includes all necessary items for installation, such as antennas, cables, and the booster unit itself.
- Can it boost 4G signals as well? - The Calls - 250m2 Mobile Signal Booster is primarily designed to boost 2G (GSM) signals for Sun Cellular. It does not boost 4G signals. If you need 4G support, you should look for a different booster model that is compatible with 4G networks.
- Can I use this booster outside the Philippines? - This specific booster is designed for Sun Cellular's 2G network in the Philippines. If you are in another country, you will need a booster that is compatible with your local mobile network and frequency bands.
- How do I know if my phone is compatible with this booster? - To check if your phone is compatible, you can look up its frequency bands. For the Calls - 250m2 Booster, your phone should support the 1800MHz frequency. You can typically find this in your phone's settings or consult the manufacturer's specifications.
