Weak Indoor Mobile Signal.
Indoors at home, I can only get a very weak 4G mobile signal - one bar upstairs and no bars at all downstairs. 3G is hardly any better. I would have hoped for a stronger signal in central London. Outside the signal is strong and my WiFi signal is strong both upstairs and down.
Is there any way I can boost my indoor mobile signal so that I can make and receive calls in all rooms? I have looked online at mobile signal boosters but they are hideously expensive.
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