There may always be blind spots in coverage.. Ma’s house was one example.. 100m up or down the road and there was coverage.. or go to second floor and stand at west side at window to try erratic coverage. Reason.. tower pointed at her but house just below hill. Bro’s house (other place) has coverage but very bad.. reason.. tower one pointer at his direction too far away.. tower two was closed but seems to be pointed away from his house.

Their solutions? Ma moved into city.. Bro was just happy work couldn’t get a hold on him 😬

Worth mention.. different providers uses different bands.. and different bands has it’s + and -.. High freq bands = faster (more data) BUT towers needs to be closer. Great for cities. Lower freq bands = slower but reach longer.. great for outside cities.