Many of them now go through the internet. My friend had me install the app, granted me access to his garage door from another country and revoked it later, all

Many of them now go through the internet. My friend had me install the app, granted me access to his garage door from another country and revoked it later, all while still in that country. I'm pretty sure he's had it fail from right outside his house due to mobile network outages more often than he's used it from far away though.