Is anyone experiencing bad mobile signal in their area?

I rarely get mobile calls anymore (mostly viber and messenger) and I've been told by my Paulinian friend, Tita and COMPANIES that my mobile is off and when they do call it's choppy It wasn't like that before because I used to talk on the mobile phone a lot pre internet call. Even 5 yrs ago crush used to call me daily sa mobile and had no issues. I don't know when their signal (?) degraded? Possible ba na the data is strong pero sa mobile calls mahina?