Calls - 500m2 (Telkomsel/Indosat/XL Axiata) Mobile Signal Booster
Extend Your Signal up to 500m²
Transform your indoor mobile experience with the Calls - 500m² Mobile Signal Booster. Efficiently cover large areas like medium houses, offices, or warehouses with enhanced signal strength, ensuring clear voice calls and quick SMS deliveries throughout your space.
Compatible with Major Indonesian Carriers
This booster operates on the 900MHz frequency, making it ideal for major Indonesian mobile networks such as Telkomsel, Indosat, and XL Axiata. Experience seamless communication regardless of your carrier and enjoy reliable connections for voice and text.
Easy Installation Kit
Our all-in-one package includes everything needed for a quick and fuss-free installation. With components like the outdoor antenna, booster unit, interior antenna, and cables all included, you can set up your signal booster effortlessly!
High Gain for Stellar Performance
Experience a significant boost in signal quality with up to 65 dB gain in downlink and 60 dB in uplink. This superior amplification ensures that even with weak outside signals, you can maintain strong call and text capabilities indoors.
Support for Multiple Users
Connect up to 50 users simultaneously with the Calls - 500m² Mobile Signal Booster. Perfect for families, small businesses, or shared spaces, ensuring everyone can enjoy reliable service without interruptions.
Upgrade Options for Enhanced Performance
Customize your booster with upgrade options for external cables and antennas to maximize performance. Choose advanced aerials for added gain or protective setups to safeguard against electrical surges, elevating your booster experience!
It boost Calls signal on 900MHz frequency, the frequency used in Indonesia used by mobile networks to deliver their mobile services: 2G (also known as GSM). It work on 900Mhz (Band 8) frequency for improving Telkomsel, Indosat and XL Axiata mobile carrier networks Voice Calls & Text signal. The booster is a high-performance booster and boost indoor signal coverage up to 500 m2, perfect for medium houses, offices, warehouse and more.
No Miss Important Calls
SMS Text Messages Quickly
Reception Up to 500 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 | Indonesia |
Boost All On | Telkomsel (2G) Indosat (2G) XL Axiata (2G) |
Users Supporting | 50 Simultaneously |
Band | Single Band 8 |
Frequency | 900MHz |
Gain(dB) | Uplink Gp≥60; Downlink Gp≥65 |
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 inside your home or office. It takes the existing weak signal from outside and amplifies it so you can have better calls and text messages. This is especially useful in places where the signal is too weak to work properly.
- How does the Calls - 500m2 booster work? - The Calls - 500m2 booster works on a specific frequency called 900MHz. This frequency is used by mobile service providers like Telkomsel, Indosat, and XL Axiata in Indonesia. The booster captures the signal from outside, amplifies it, and sends it inside your home to ensure clearer voice calls and faster text messages.
- Can I install the mobile signal booster myself? - Yes! The installation is designed to be user-friendly. You just need to place the outdoor antenna where there is a good mobile signal, connect it to the booster with the provided cable, then place the indoor antenna where you need better reception. It only takes a few steps to set up!
- How big of an area does the booster cover? - The Calls - 500m2 booster can cover an area of up to 500 square meters. This makes it ideal for medium-sized homes, small offices, or warehouses, providing good signal strength in those areas.
- What do I do if there's no signal outside? - If there is no signal outside, the booster will not work. The booster can only amplify the existing signal; it cannot create one. You need to ensure that there is at least a weak signal outside for the booster to function.
- Can the booster help with 4G signals? - The Calls - 500m2 booster is specialized for 2G signals, so it works well with voice calls and text messages on networks like Telkomsel, Indosat, and XL Axiata. It does not boost 3G or 4G signals.
- What should I do if I have poor signal strength? - If you have poor signal strength, consider checking your current signal reception and where your outdoor antenna is placed. Sometimes moving the outdoor antenna to a higher location can help improve the situation. You can also look into upgrading to higher gain antennas if necessary.
- How many users can the booster support? - The Calls - 500m2 booster can support up to 50 users at the same time. This means multiple family members or colleagues can enjoy improved signal strength without issues.
- Is the equipment safe to use? - Yes, the equipment is safe to use. It complies with regulations and is designed to operate within allowable limits. Just follow the installation instructions properly for the best results.
- How can I contact support if I have questions? - If you have any questions or need help, you can visit the support section on our website or contact our customer service for assistance. We're here to help you troubleshoot any issues or answer your questions!
