Locally, mobile network operators are primarily concerned with providing cell signal coverage in well populated areas, not necessarily ensuring that their signal reaches in-building.
If you live out in the country, in a rural area or under a metal roof, then you’re aware of how inconsistent cell signals can be. It’s frustrating to lose a call. More so, constantly searching for cell signal quickly drains your cell phone battery, and as result, charging more frequently shortens your battery life all together.
Unfortunately, waiting for mobile operators to expand their network by building more cell towers can be a long wait, and simply switching providers will not solve the underlining problem: Your building blocks cellular signal, no matter which mobile network you choice to use.
However, the problem can easily be solved by installing a GSM cell signal booster / repeater system, designed to bring outdoor cell signal inside – which is then amplified, delivering better call quality and a longer battery life for your phone.