If you live or work in places of uncertain reception network, help would come with such a device as Wilson SignalBoost MobilePro, which would be able to improve the signal almost doubled.
The kit includes: MobilePro Wilson SignalBoost amplifier unit with built-in antenna, remote antenna connected by a coaxial cable, universal adapter for connecting external antennas and 12-volt car adapter.
The amplifier can be powered from the USB port of PC or network, automobile cigarette lighter power supply. Devays with no installation required and increases both incoming and outgoing signal.
If the quality of communication plays an important role for you, you will have to pay for it 295 USD United States.