# 3G & Calls - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster ##### **Enhanced 3G & Call Quality** Experience exceptional call clarity and 3G coverage with our booster that enhances signals on both the 900MHz and 2100MHz frequencies. Compatible with all major Swiss networks, including Swisscom, Sunrise, and Yallo, you'll never miss a call again, whether you're at home, in a café, or at a busy restaurant. ##### **Extended Coverage** Designed to cover areas up to 250m², this booster ensures that your entire space enjoys reliable mobile connectivity. Ideal for homes, restaurants, and commercial establishments, say goodbye to weak signals and hello to seamless connectivity throughout your venue. ##### **Dual Band Functionality** Our mobile signal booster operates on both 900MHz and 2100MHz frequencies simultaneously, supporting multiple networks. This dual-band feature makes it a must-have for households where multiple networks are utilized, ensuring everyone stays connected. ##### **Quick Installation Kit** Everything you need is included in one package: external aerial, cables, a booster unit, internal aerial, and a power adapter. The straightforward installation means you'll be up and running in no time, improving your signal with ease. ##### **Optional Upgrades** Customize your setup with available upgrades like high-gain antennas and lightning surge protectors. Enhance your signal ability or protect your equipment from electrical surges to ensure optimal performance, tailored to your specific needs. ##### **Dependable Internet Speeds** Enjoy faster upload and download speeds with improved 3G internet capabilities. Stream, browse, and share without interruptions, giving you a smoother online experience whether for work or leisure. It boost **All 3G & All Calls** signal on 900MHz, 2100MHz frequencies, the frequencies used in **Switzerland** used by mobile networks to deliver their mobile services: 3G, 3.5G (also known as HSDPA provides faster data rates than 3G) and 2G. It can boost all networks on Sunrise, Swisscom, Yallo, M-Budget, Lebara, Aldi mobile, Ortel mobile, Lycamobile, Ok.-mobile, Salt Mobile, UPC Cablecom, CoopMobile, TalkTalk and Mucho for improving **3G, 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. This system is compatible with all 3G mobile phone networks, will provide coverage on both 900MHz, 2100MHz frequency **simultaneously**. It's Dual Band booster and is an **ESSENTIAL** if many people in the same household are on different mobile phone networks! * * * **Wow 3G Calls** Eliminates Dropped Calls **Clear Voice** No Miss Important Calls **Consistent Connection** Reliable 3G Data **Send/Receive SMS** SMS Text Messages Quickly **3G Internet** Faster Uploads & Downloads **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 \[3G Data and Voice Calls\] (Band 8, 1) Country Switzerland **Boost All On** Swisscom (2G & 3G) Sunrise (2G & 3G) Salt Mobile (2G & 3G) Yallo (2G & 3G) Aldi mobile (2G & 3G) CoopMobile (2G & 3G) Lebara mobile (2G & 3G) Lycamobile (2G & 3G) Mucho (2G & 3G) M-Budget (2G & 3G) Ok.-mobile (2G & 3G) Ortel mobile (2G & 3G) TalkTalk (2G & 3G) UPC Cablecom (2G & 3G) Users Supporting 25 Simultaneously Band Dual Band 8 & 1 Frequency 900 & 2100MHz Gain(dB) Uplink Gp≥50; Downlink Gp≥55 Up-link 890~915 MHz; 1930~1990 MHz Down-link 935~960 MHz; 2110~2180 MHz Export Power(Po) \-70~-40 dBm/FA(1.23MHz) 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, or Band 1, 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 does a mobile signal booster do? - A mobile signal booster helps improve weak cell phone signals in your home or office. It works by taking the outside signal, making it stronger, and then sending that stronger signal inside. This means better calls, faster internet, and fewer dropped calls for everyone in your space. 2. Is the booster compatible with all mobile networks in Switzerland? - Yes, this booster is compatible with major Swiss mobile networks like Swisscom, Sunrise, Salt, and Yallo, among others. So, no matter which provider you use, you can enjoy better signal strength for calls and internet. 3. How much area can the booster cover? - The booster can effectively cover an indoor area of up to 250 square meters. This makes it great for homes, cafes, restaurants, or even small clubs, ensuring everyone inside can enjoy better signals. 4. What if I don’t get any signal outside? - The booster requires some outside signal to work. If there is no signal coming from outside, it won’t be able to create one. Make sure to check your outside signal strength before purchase. 5. How do I check my mobile frequency band? - To check your mobile frequency band, you can dial \*3001#12345#\* on your iPhone and press Call. Then, select 'Serving Cell Info' to see the 'Freq Band Indicator'. 6. Can multiple people use the signal booster at the same time? - Yes! The booster can support up to 25 users simultaneously. So, your family members and friends can all enjoy better signals at the same time. 7. Is the installation process easy? - Yes! The kit comes with everything you need, including antennas and cables, and is designed for easy installation. Most people can set it up on their own without needing professional help. 8. What happens if I need longer external cables? - If the standard 10-meter external cables are not long enough for your setup, you have the option to upgrade to longer cables. This way, you can ensure a strong connection no matter where you install the booster. 9. What is a lightning surge protector? - A lightning surge protector is an additional tool that can be added to your setup. It helps keep your equipment safe from damage caused by lightning strikes, ensuring everything continues to work smoothly. 10. Can the booster be used in different rooms? - Yes, the booster can improve signal strength in multiple rooms within its coverage area. As long as you're within the 250 square meter range, you can enjoy better calls and internet in different spaces. TAGES: 3G mobile signal booster, call signal booster Switzerland, indoor signal booster, Sunrise Swisscom Salt Yallo, dual band booster, mobile signal improvement, boost voice calls, 250m2 coverage ## Details - **Price:** 235.0 GBP - 355.0 GBP - **Vendor:** UKMobileBooster.com - **Type:** Switzerland - **Tags:** application 3G Data & Voice Calls, ch Aldi, ch ch, ch CoopMobile, ch Lebara, ch Lycamobile, ch M-Budget, ch Mucho, ch Ok.-mobile, ch Ortel, ch Salt, ch Sunrise, ch Swisscom, ch TalkTalk, ch UPC Cablecom, ch Yallo, coverage up to 250 sq metres, has_stock_countdown, provider Aldi Mobile, provider CoopMobile, provider Lebara Mobile, provider Lycamobile, provider M-Budget, provider Mucho, provider Ok.-mobile, provider Ortel Mobile, provider Salt Mobile, provider Sunrise, provider Swisscom, provider TalkTalk, provider UPC Cablecom, provider Yallo ## Variants | Variant | Price | Available | |---------|-------|-----------| | No / No / No | 235.00 GBP | In stock | | No / No / Yes | 255.00 GBP | In stock | | No / Yes / No | 285.00 GBP | In stock | | No / Yes / Yes | 305.00 GBP | In stock | | 20 M / No / No | 255.00 GBP | In stock | | 20 M / No / Yes | 275.00 GBP | In stock | | 20 M / Yes / No | 305.00 GBP | In stock | | 20 M / Yes / Yes | 325.00 GBP | In stock | | 30 M / No / No | 265.00 GBP | In stock | | 30 M / No / Yes | 285.00 GBP | In stock | | 30 M / Yes / No | 315.00 GBP | In stock | | 30 M / Yes / Yes | 335.00 GBP | In stock | | 40 M / No / No | 275.00 GBP | In stock | | 40 M / No / Yes | 295.00 GBP | In stock | | 40 M / Yes / No | 325.00 GBP | In stock | | 40 M / Yes / Yes | 345.00 GBP | In stock | | 50 M / No / No | 285.00 GBP | In stock | | 50 M / No / Yes | 305.00 GBP | In stock | | 50 M / Yes / No | 335.00 GBP | In stock | | 50 M / Yes / Yes | 355.00 GBP | In stock | ## Images - 3G & Calls - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster - 3G & Calls - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster - 3G & Calls - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster - 3G & Calls - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster - 3G & Calls - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster - 3G & Calls - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster - 3G & Calls - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster - 3G & Calls - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster - 3G & Calls - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/ch-gw250-mobile-booster) > Updated: 2026-09-02