# Calls - 250m2 (MTNL/Loop Mobile) Mobile Signal Booster ##### **Enhanced Call Clarity** Say goodbye to dropped calls and garbled conversations with the Calls - 250m2 Mobile Signal Booster. Designed specifically to amplify 900MHz signals, this device ensures crystal-clear voice quality for MTNL and Loop Mobile users, making your communication seamless and reliable. ##### **Wider Coverage Area** Expand your mobile connectivity with up to 250 square meters of boosted signal coverage. Ideal for homes, cafes, restaurants, and small clubs, this mobile signal booster ensures that everyone in your space stays connected, no matter where they are. ##### **Complete Installation Kit** Everything you need for a successful installation comes included! With the Calls - 250m2 booster, you receive an outdoor antenna, indoor antenna, cables, and a power adapter, making setup hassle-free so you can enjoy improved signal fast. ##### **Multi-User Support** Connect up to 25 users simultaneously without a hitch. Whether it's family, friends, or customers, everyone can enjoy uninterrupted service and enhanced mobile connectivity with the Calls - 250m2 Mobile Signal Booster. ##### **Lightning Protection Upgrade** Take no chances with your investment! Optional lightning surge protectors are available to guard your equipment against power surges from lightning strikes, ensuring your mobile signal booster remains safe and operational throughout storms. ##### **User-Friendly Installation** No technical expertise? No problem! Our user-friendly guide makes installation straightforward and stress-free. Simply follow our step-by-step directions to set up your booster quickly and effectively, allowing you to enjoy better signal in no time. It boost **Calls** signal on 900MHz frequency, the frequency used in **India** used by mobile networks to deliver their mobile services: 2G (also known as GSM). It work on 900Mhz (Band 8) frequency for improving MTNL and Loop Mobile 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. * * * **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. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal cables](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Cable.jpg?v=1693125491) * * * ### 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](https://www.ukmobilebooster.com/pages/quick_start_guide) ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal 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. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal surge protector](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageSurgeProtector.webp?v=1600640184) * * * ### Specification (scroll to view all) Application & Bands Voice Calls & Text (Band 8) Country India **Boost All On** MTNL (2G) Loop 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 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 4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal 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 4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal 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 4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal 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) ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal signal coverage](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Coverage.jpg?v=1698191834) ### **Application Scenarios** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal home application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-home.png?v=1697980834) **Home** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal office application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-office.png?v=1697980832) **Office** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal garage application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-garage.png?v=1697980834) **Garage** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal metal buildings application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-metal-buildings.png?v=1697980834) **Metal Buildings** 1. What is the Calls - 250m2 Mobile Signal Booster? - The Calls - 250m2 Mobile Signal Booster is a device that enhances your mobile signals, specifically designed for MTNL and Loop Mobile networks in India. It operates on a frequency of 900MHz, which helps improve voice calls and SMS services inside spaces up to 250 square meters, making it suitable for homes, cafes, and small businesses. 2. How does the mobile signal booster work? - The mobile signal booster captures weak signals from outside, amplifies them, and then redistributes the enhanced signals indoors. It does not create new signals; it only makes existing signals stronger. Therefore, if there is no outside signal, it cannot function. 3. Can I install the booster by myself? - Yes, the mobile signal booster kit comes with everything you need for installation, including antennas, cables, and instructions. We recommend a loose installation first to find the best spot for your antennas before making it permanent. 4. Is there any special requirement for installation? - You should install the outdoor antenna in a location with good signal strength, usually on the roof or a high point. The kit includes a 10-meter cable for connecting the outdoor antenna to the booster unit. 5. Can this booster work with other mobile networks? - The Calls - 250m2 Mobile Signal Booster is specifically designed for MTNL and Loop Mobile networks. If you are using different networks, you will need to check if they operate on the same frequency (900MHz) and may require a different booster. 6. What should I do if the booster is not working? - Make sure that the outdoor antenna is placed in an area where it can receive good signals. Check all connections and ensure that the booster is powered on. If there is still no improvement, you may need to contact support for assistance. 7. What upgrades can I get with the booster? - You can upgrade the external cables for longer lengths, choose a higher gain outdoor antenna for better performance, or add a lightning surge protector to safeguard the system against surges caused by lightning. 8. How many users can connect to the booster at once? - The Calls - 250m2 Mobile Signal Booster can support up to 25 users simultaneously, making it an effective choice for small homes or businesses. 9. What if I have questions after buying the booster? - If you have any questions after your purchase, you can visit our support section on the website, where you’ll find FAQs and support links, or you can contact us directly. 10. Can I get my money back if I am not satisfied? - Yes, if you are not satisfied with your purchase, our return policy allows you to return the item within a specified period for a full refund, as long as it meets the return conditions. TAGES: mobile signal booster, MTNL signal booster, Loop Mobile booster, 250m2 coverage, improve mobile reception, GSM 900MHz, indoor signal booster, boost voice calls ## Details - **Price:** 110.0 GBP - 230.0 GBP - **Vendor:** UKMobileBooster.com - **Type:** India - **Tags:** application Voice Calls, coverage up to 250 sq metres, has_stock_countdown, in in, provider Loop Mobile, provider MTNL ## 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 - Calls - 250m2 (MTNL/Loop Mobile) Mobile Signal Booster - Calls - 250m2 (MTNL/Loop Mobile) Mobile Signal Booster - Calls - 250m2 (MTNL/Loop Mobile) Mobile Signal Booster - Calls - 250m2 (MTNL/Loop Mobile) Mobile Signal Booster - Calls - 250m2 (MTNL/Loop Mobile) Mobile Signal Booster - Calls - 250m2 (MTNL/Loop Mobile) Mobile Signal Booster - Calls - 250m2 (MTNL/Loop Mobile) Mobile Signal Booster - Calls - 250m2 (MTNL/Loop Mobile) Mobile Signal Booster - Calls - 250m2 (MTNL/Loop Mobile) Mobile Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/in-g250-mobile-booster) > Updated: 2026-09-02