I have faced big problems in working from my warehouse. The place is very big and a bit far from the city. I can't clear the speaker and even misunderstand them. I know that amplifiers can solve the problem but are they effective? Do they really improve the signal?
I know that one possible solution to your problem can be an amplifier - it's a certain device that amplifies the mobile signal. People say that it is rather effective and can greatly improve the signal. I know that myamplifiers.com sell similar devices.