# 4G LTE & Calls - 100m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster ##### **Enhanced Signal Strength** Transform your mobile experience with our powerful signal booster that enhances 4G LTE and voice signals on critical frequencies used in Finland. This booster works seamlessly on both Band 20 (800MHz) and Band 3 (1800MHz), ensuring robust connectivity for all major mobile networks including Telia, Elisa, DNA, Alcom, and Tele Finland. ##### **Dual Band Coverage** Our advanced Dual Band technology boosts signals on both 800MHz and 1800MHz frequencies simultaneously. Ideal for households or small offices where multiple users are on different networks, this device ensures everyone can enjoy uninterrupted 4G LTE and voice calls without compromise. ##### **Crystal Clear Calls** Upgrade your calling experience with clearer voice calls thanks to 4G Calling (VoLTE) support. Even in areas with limited 4G coverage, our booster allows for reliable voice transmission, reducing the risk of dropped calls and ensuring you never miss important conversations. ##### **Wide Indoor Coverage** Designed for small spaces, our booster covers an impressive area of up to 100m², making it the perfect choice for apartments or small offices. Enjoy strong signals in every corner, eliminating dead zones and enhancing your overall mobile experience. ##### **Comprehensive Installation Kit** Everything you need for a seamless installation is included in one affordable package. Your kit comes with an external aerial, cables, a booster base unit, an internal aerial, and a power adapter, ensuring you have all the components required to boost your signal effectively. ##### **User-Friendly Band Checker** Easily verify your frequency bands with our handy Band Checker. Just dial \*3001#12345# and access 'Serving Cell Info' to ensure compatibility. With additional support from apps like CellMapper, staying connected has never been easier! It boost **4G LTE and Calls** signal on 800MHz, 1800MHz frequency, the frequencies used in **Finland** used by mobile networks to deliver their mobile services: 4G and 2G (also known as GSM). It work on both 800Mhz (Band 20) & 1800Mhz (Band 3) frequencies for improving Telia, Elisa, DNA, Alcom and Tele Finland ALL mobile carrier networks **4G LTE, Voice Calls and Texts** signal. If your phones support 4G Calling (also called Voice over LTE or VoLTE) and your area 4G Calling is available, with the booster you can make clearer voice calls using 4G network. If you have a 4G ready phone, but you’re **not in a 4G area**, you’ll still be able to use **voice calls and text**. Boost indoor signal cover an area up to **100 m2**, is ideal for small apartments or offices. The system is designed for universal 4G coverage. Unlike other kits this device will boost ALL mobile providers' 4G LTE, the solution will provide coverage on on both 800MHz, 1800MHz 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 4G/2G Calls** Eliminates Dropped Calls **Clear Voice** No Miss Important Calls **Consistent Connection** Reliable 4G/LTE Data **Send/Receive SMS** SMS Text Messages Quickly **4G/LTE Internet** Faster Uploads & Downloads **Signal Wider Coverage** Reception Up to 100 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 \[4G/LTE & Voice Calls\] (Band 20, 3) Country Finland **Boost All On** Telia (4G & 2G) Elisa (4G & 2G) DNA (4G & 2G) Alcom (4G & 2G) Tele Finland (4G & 2G) Users Supporting 10 Simultaneously Band Dual Band 20 & 3 Frequency 800MHz & 1800MHz Gain(dB) Uplink Gp≥45; Downlink Gp≥50 Up-link 832~862 MHz; 1710~1785 MHz Down-link 791~821 MHz; 1805~1880 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 20, or Band 3, 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 2 Indoor Antennas](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Expand-Cell-Coverage-with-2-Indoor-Antenna.png?v=1700361962) ### **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 a mobile signal booster? - A mobile signal booster is a device that helps improve the strength of your mobile phone signal. It works by capturing weak signals from outside, amplifying them, and then sending the stronger signals inside your home or office. This means better calls, faster internet, and reliable texts! 2. How does this booster work with different networks? - This booster is special because it works with all mobile networks in Finland, like Telia, Elisa, DNA, Alcom, and Tele Finland. It boosts signals for both 4G LTE and 2G voice calls at the same time, which is great if you have people in your home using different networks. 3. Do I need a good signal outside for the booster to work? - Yes, the booster needs to get some signal from outside to work effectively. If there is no signal available outside, it won't be able to amplify anything inside. It's like needing a light source to make a room brighter! 4. What areas can this booster cover? - This booster can cover an area up to 100 square meters. That's about the size of a small apartment or office. It’s perfect if you want to enjoy better phone signal in every room! 5. How do I know if my phone supports 4G Calling? - To check if your phone supports 4G Calling, you can dial \*3001#12345#\*, then press the call button. After that, look for 'Freq Band Indicator.' If it shows Band 20 or Band 3, your phone is good to go for 4G Calling! 6. Can I use my phone for calls and texts if I don’t have 4G in my area? - Absolutely! If your phone is 4G ready but there's no 4G signal in your area, you can still make calls and send texts using 2G or GSM. The booster will help improve your signal for those as well. 7. Is the installation of the booster easy? - Yes! The kit comes with everything you need, such as an external antenna, cables, and the booster unit. It is designed for easy installation, so you won’t need to be a tech expert to set it up! 8. What if my external cables are too short? - If the standard 10-meter external cable isn’t long enough for your area, you can upgrade to longer cables! Just check the options available to make sure you have the right length for your coverage needs. 9. How can I protect my booster from lightning? - To keep your equipment safe from lightning, you can add a Lightning Surge Protector. This device is designed to guard your booster from surges caused by lightning strikes. It’s easy to install and helps ensure your booster stays protected. TAGES: 4G LTE booster, mobile signal booster, Finland mobile networks, Telia Elisa DNA Alcom, dual band signal amplifier, VoLTE voice calls, indoor signal coverage, SMS text message booster ## Details - **Price:** 185.99 GBP - 305.99 GBP - **Vendor:** UKMobileBooster.com - **Type:** Finland - **Tags:** application 4G LTE Data & Voice Calls, coverage Up to 100 sq metres, fi Alcom, fi DNA, fi Elisa, fi fi, fi Tele, fi Telia, has_stock_countdown, provider Alcom, provider DNA, provider Elisa, provider Tele Finland, provider Telia ## Variants | Variant | Price | Available | |---------|-------|-----------| | No / No / No | 185.99 GBP | In stock | | No / No / Yes | 205.99 GBP | In stock | | No / Yes / No | 235.99 GBP | In stock | | No / Yes / Yes | 255.99 GBP | In stock | | 20 M / No / No | 205.99 GBP | In stock | | 20 M / No / Yes | 225.99 GBP | In stock | | 20 M / Yes / No | 255.99 GBP | In stock | | 20 M / Yes / Yes | 275.99 GBP | In stock | | 30 M / No / No | 215.99 GBP | In stock | | 30 M / No / Yes | 235.99 GBP | In stock | | 30 M / Yes / No | 265.99 GBP | In stock | | 30 M / Yes / Yes | 285.99 GBP | In stock | | 40 M / No / No | 225.99 GBP | In stock | | 40 M / No / Yes | 245.99 GBP | In stock | | 40 M / Yes / No | 275.99 GBP | In stock | | 40 M / Yes / Yes | 295.99 GBP | In stock | | 50 M / No / No | 235.99 GBP | In stock | | 50 M / No / Yes | 255.99 GBP | In stock | | 50 M / Yes / No | 285.99 GBP | In stock | | 50 M / Yes / Yes | 305.99 GBP | In stock | ## Images - 4G LTE & Calls - 100m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster - 4G LTE & Calls - 100m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster - 4G LTE & Calls - 100m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster - 4G LTE & Calls - 100m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster - 4G LTE & Calls - 100m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster - 4G LTE & Calls - 100m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster - 4G LTE & Calls - 100m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster - 4G LTE & Calls - 100m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster - 4G LTE & Calls - 100m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster - 4G LTE & Calls - 100m2 (Telia/Elisa/DNA/Tele Finland/Alcom) Mobile Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/fi-cd100-mobile-booster) > Updated: 2026-09-02