4G signal booster for better reception

How does it feel when you are making important calls through your cell phone and enjoying the service of it being wireless and suddenly you go to a dead zone and call is lost? Or you are expecting a million dollar deal to come to you and it goes to someone else because your cell phone is unreachable. This would feel the person like the unluckiest man on earth that is facing the problem. I know that no person would like himself to be indulged in such kind of problem, so it is best to take proper precautions i.e. prepare your cell phone to have the best cell phone signal reception. But this seems quite impossible, as you need to be in the range of the towers all the time if you want good signal reception. So at this point of time arises the need of a scientific device that may allow you to roam anywhere and have all the benefits of being in the range of a cell phone tower. I am talking about the miracle of science- cell phone signal booster. As the name indicates the device is used to boost all the weak signals and transmit them back to the desired locations specified by the user. As amplifying of the signals is done, the booster is also known as cell phone signal amplifier at many places.
A cell phone signal repeater has many parts that are separately responsible for some work i.e. the external antenna receives the weak signals and sends them to the base unit for amplifying in the amplifier. The internal antenna is used to retransmit these boosted signals back to the cell phones present in its range. If you are using a 4G service then you might ask the retailer for a cell phone booster 4G which was recently launched for better reception of signals in 4G enabled cell phones.