I found that the signal in many churches is very poor, the mobile phone can't send information, can't talk. Why?

I am a believer. I often go to church to pray on weekends, but the cell phone signal is very poor when I approach the church or enter the church. Sometimes I miss important calls because of this. What is the reason?

Topsignaljammer  2022.

Journalists in Monterrey, Mexico recently discovered that when they went to church to cover celebrity weddings, their phones were always off, leaving them unable to contact editors behind them. When reporters asked the pastor why, the pastor replied: It was "Israeli counterintelligence." It turns out that the church had recently been fitted with an Israeli-made phone jammer.