Yes, telephone signal boosters work. As long as there’s some signal outside, they will multiply that signal up to 32 times to supply strong cellular reception inside homes, offices, and vehicles.
Unfortunately, there are many telephone signal boosters available on the market that simply don’t work as advertised. All telephone boosters we supply do however work and can amplify weak signals by taking signals received outside and bringing these inside and amplifying them. It should even be noted that any cell signal booster will only work if there’s actually enough signal outside to put a call. With no signal outdoors, no cellphone booster are going to be ready to work.