# Calls - 250m2 (Orange/Bouygues/SFR/free) Mobile Phone Signal Booster

##### **Enhanced Coverage**

  

Experience uninterrupted connectivity with the Calls - 250m2 Mobile Phone Signal Booster. Designed to cover up to 250 square meters, this powerful device optimizes mobile signals throughout your home, cafe, or office, ensuring you stay connected when it matters most.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature1-1.png?v=1780277092)

##### **Multi-Network Compatibility**

  

Enjoy seamless connectivity across major French networks like Orange, Bouygues, SFR, and Free. This booster amplifies your mobile signals on the 900MHz frequency, allowing multiple users to connect without any hiccups, perfect for homes with multiple devices.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature2.png?v=1780223075)

##### **User-Friendly Installation**

  

Installation is a breeze with the complete kit provided, which includes all necessary components. With just a few simple steps, set it up without professional help, saving you time and hassle. Enjoy amplified signals in no time!  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature3.png?v=1780223075)

##### **Reliable Voice and Text Quality**

  

Say goodbye to dropped calls and delayed texts. The Calls - 250m2 ensures crystal clear voice communication and faster SMS delivery, making it the ideal solution for remote areas or buildings with thick walls that disrupt reception.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature4.png?v=1780223075)

##### **Supports Up to 25 Users**

  

Stay connected with family and friends! The Calls - 250m2 can support up to 25 simultaneous users, accommodating everyone in your space. Whether you're calling, texting, or browsing, everyone can enjoy a strong signal.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature5.png?v=1780223075)

##### **Complete Kit for Optimal Performance**

  

The booster comes as a complete package including both indoor and outdoor antennas, a power adapter, and a 10-meter outdoor cable. This all-in-one solution ensures you maximize your signal boost while minimizing additional purchases.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature6.png?v=1780223075)

## **3 Steps to Full Bars**

## 1\. Place the Outdoor Antenna

Mount the antenna where you get the best signal.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-1.gif?v=1780223819)  
  

## 2\. Connect the Booster Inside

Plug in the booster and connect to the antenna.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-2.gif?v=1780223819)  
  

## 3\. Enjoy Full Bars Everywhere

Clear calls, fast data, and no more dead zones.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-3.gif?v=1780223819)  
  

## mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution

It boost **Calls** signal on 900MHz frequency, the frequency used in **France** used by mobile networks to deliver their mobile services: 2G (also known as GSM). It work on 900Mhz (Band 8) frequency for improving Orange, Bouygues, SFR, free etc ALL mobile carrier networks (except Cellhire) **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.

* * *

**Clear Voice**  
No Miss Important Calls

**Send/Receive SMS**  
SMS Text Messages Quickly

**Signal Wider Coverage**  
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.  
![mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution cables](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageCable.webp?v=1600639912)

* * *

### 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 shown dBm reading on phone, can refer [Quick Start Guide](https://www.ukmobilebooster.com/pages/quick_start_guide)  
![mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution higher gain yagi antenna](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHigherGainYagiAntenna.webp?v=1600640184)

* * *

### 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.  
![mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution surge protector](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageSurgeProtector.webp?v=1600640184)

* * *

### Specification

Application & Bands

Voice Calls & Text (Band 8)

Country

France

**Boost All On**

Orange (2G)  
Bouygues (2G)  
SFR (2G)  
free (2G)  
La Poste Mobile (2G)  
Le French Mobile (2G)  
Lebara Mobile (2G)  
Lycamobile (2G)  
NRJ (2G)  
Prixtel (2G)  
Reglo Mobile (2G)  
SOSH (2G)  
Transatel (2G)  
Virgin Mobile (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 EU Power Adapter  
1 x 10 Meters Outdoor Cable

**Warming Tips:**  
-   Band Confirmation: This booster can boost signals on Band 8, please check the band of your devices firstly.
-   For iPhone: Dial \*3001#12345#\* → Press call button → Click 'Serving Cell Info' → Check 'Freq Band Indicator'.
-   For Android: Download 'LTE Discovery' APP → Click ‘SIGNALS’ → Check 'EARFCN'. More refer to [Quick Start Guide](https://www.ukmobilebooster.com/pages/quick_start_guide).
-   External Signal Needed: The signal booster can only amplify signal but can't create signal. If there is no signal outside, it won't work, please make sure you get 1-2 bars signal outside.

### Custom your solution

#### **Expandable coverage by adding indoor antenna if the outside signal is strong.**

  

![UK Mobile Booster Expand Cell Coverage with 3 Indoor Antennas](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Expand-Cell-Coverage-with-3-Indoor-Antenna.png?v=1700361963)

  

### **How It Works**

  

![how mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHIWhomeoffice-2.webp?v=1650634397)

#### 1

**Receives signal**  
The powerful antenna reaches out to access a voice and 3G, 4G, and LTE data signal, and delivers it to the booster  

#### 2

**Boosts signal**  
The booster receives the signal, amplifies it, and serves as a relay between your phone and the nearest cell tower.  

#### 3

**Broadcasts signal**  
Your devices get increased cell reception, and calls and data are fed through the booster back to the network.  
  

  

#### **Get stronger signal**

  

![how mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPagenormalcoverage-2.webp?v=1650634397)

#### 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.

![how mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageboostedcoverage-2.webp?v=1650634397)

#### 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**

1.  Connect the indoor antenna to the MS port.
2.  Connect the outdoor antenna to the BS Port.
3.  Install the outdoor antenna and keep a minimum vertical distance of 10 meters from the indoor antenna.
4.  Point the outdoor antenna to the direction where you know there is possibly a higher signal strength from the base station.
5.  Power on the booster and check the signal strength.
6.  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.](https://drive.google.com/file/d/1Uch5legGJsKTzLO9PTGpgsKEnZGEq7TH/view)

![mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution signal coverage](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Coverage.jpg?v=1698191834)

  

### **Application Scenarios**

  

![mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution home application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-home.png?v=1697980834)  
**Home**

![mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution office application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-office.png?v=1697980832)  
**Office**

![mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution garage application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-garage.png?v=1697980834)  
**Garage**

![mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution metal buildings application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-metal-buildings.png?v=1697980834)  
**Metal Buildings**

1.  Q: What is the Calls - 250m2 Mobile Phone Signal Booster?  
    A: The Calls - 250m2 Mobile Phone Signal Booster is a device designed to improve mobile phone signal reception indoors. It works with major mobile networks in France, such as Orange, Bouygues, SFR, and Free, enhancing voice calls and text messages. This booster is ideal for medium-sized areas, boosting signal coverage up to 250 square meters, which is perfect for homes, offices, and public places like cafes and restaurants.
2.  Q: How does the mobile signal booster work?  
    A: The mobile signal booster works in three main steps: First, it receives weak signals from a nearby cell tower through an external antenna. Next, the booster amplifies these signals and then broadcasts the stronger signal inside your home or office through an indoor antenna. This process helps ensure a better connection for phone calls and data.
3.  Q: Do I need an existing mobile signal for the booster to work?  
    A: Yes, the mobile signal booster requires some existing signal from the outside. If there is no signal outside, the booster won't work since it amplifies the signals, it doesn't create them. Make sure there is at least 1-2 bars of signal outside before using the booster.
4.  Q: How can I install the mobile signal booster?  
    A: To install the mobile signal booster, first connect the indoor antenna to the MS port and the outdoor antenna to the BS port. Place the outdoor antenna at a location where it can pick up the best signal, ideally with a distance of at least 10 meters from the indoor antenna. Once you have set it up, turn on the booster and adjust the outdoor antenna until the best signal is achieved.
5.  Q: What happens if I don’t have good signal outside?  
    A: If you do not have a good signal outside (less than 1-2 bars), the booster will not be effective. The booster needs an existing signal to amplify; without it, the booster cannot create a functioning signal. You may want to consider other network solutions if outdoor signals are consistently weak.
6.  Q: Can I use this booster with different mobile devices?  
    A: Yes, the Calls - 250m2 Mobile Phone Signal Booster is compatible with various mobile devices that work on the 2G frequency band (900MHz). This includes most smartphones, tablets, and devices used with Orange, Bouygues, SFR, and Free networks in France.
7.  Q: What if I want to cover a larger area?  
    A: If you need to cover a larger area, you can expand the coverage by adding additional indoor antennas. This is useful when the outside signal is strong enough, and you want to ensure that multiple rooms or larger areas receive improved signal strength.
8.  Q: Is it necessary to upgrade the external cables?  
    A: If the standard 10 meter external cable that comes with the booster is not long enough for your needs, you have the option to upgrade to longer cables. This can help ensure that the outdoor antenna is placed in the best position for signal reception.
9.  Q: What is the purpose of the Lightning Surge Protector?  
    A: The Lightning Surge Protector is designed to protect your mobile signal booster equipment from damage caused by lightning strikes. It can handle high amperage surges, ensuring that your device remains safe and operational even during storms.
10.  Q: Are there any specific installation tips I should know?  
     A: Yes, before installing your booster, make sure to not power it on until the installation is complete. Additionally, always check the signal strength after setup and adjust the outdoor antenna for the best reception. Following these steps will help you get optimal performance from your mobile signal booster.

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## Details

- **Price:** 110.0 GBP - 230.0 GBP
- **Vendor:** UKMobileBooster.com
- **Type:** France
- **Tags:** application Voice Calls, coverage up to 250 sq metres, fr Bouygues, fr fr, fr free, fr La, fr Le, fr Lebara, fr Lycamobile, fr NRJ, fr Orange, fr Prixtel, fr Reglo, fr SFR, fr SOSH, fr Transatel, fr Virgin, has_stock_countdown, provider Bouygues, provider free, provider La Poste, provider Le French, provider Lebara, provider Lycamobile, provider NRJ, provider Orange, provider Prixtel, provider Reglo, provider SFR, provider SOSH, provider Transatel, provider Virgin

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| No / No / No | 110.00 GBP | In stock |
| No / No / Yes | 125.00 GBP | In stock |
| No / Yes / No | 160.00 GBP | In stock |
| No / Yes / Yes | 180.00 GBP | In stock |
| 20 M / No / No | 130.00 GBP | In stock |
| 20 M / No / Yes | 150.00 GBP | In stock |
| 20 M / Yes / No | 180.00 GBP | In stock |
| 20 M / Yes / Yes | 200.00 GBP | In stock |
| 30 M / No / No | 140.00 GBP | In stock |
| 30 M / No / Yes | 160.00 GBP | In stock |
| 30 M / Yes / No | 190.00 GBP | In stock |
| 30 M / Yes / Yes | 210.00 GBP | In stock |
| 40 M / No / No | 150.00 GBP | In stock |
| 40 M / No / Yes | 170.00 GBP | In stock |
| 40 M / Yes / No | 200.00 GBP | In stock |
| 40 M / Yes / Yes | 220.00 GBP | In stock |
| 50 M / No / No | 160.00 GBP | In stock |
| 50 M / No / Yes | 180.00 GBP | In stock |
| 50 M / Yes / No | 210.00 GBP | In stock |
| 50 M / Yes / Yes | 230.00 GBP | In stock |

## Images

- mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution
- Man sitting on a couch using a smartphone with a blurred outdoor background UK Mobile Phone Signal Booster Improve Signal
- mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution
- mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution
- mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution
- mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution
- mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution
- mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution
- mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution
- mobile phone signal booster France 250m2 coverage 900MHz frequency Orange Bouygues SFR free voice calls indoor signal booster mobile network solution

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> Source: [B4U](https://www.ukmobilebooster.com/products/fr-g250-mobile-booster)
> Updated: 2026-09-02