they do it at a macro level - more theoretical. They have the info - because the phones report where they are and the power level
they are receiving. Some phones also do better than others.
everyone should have wifi calling turned on at this point.
Your cable co probably has mobile wifi, so make sure you have the latest certificates loaded - it will connect automatically.
Precisely. Or should I say, imprecisely. They make the map based on best-case signal coverage from each tower, that's how they have no holes. I'm just living on the edge, and not in a fun way. I guess my comment about the map was a bit naive, thinking that a marketing tool would be telling the whole story.
I do have wifi calling on, but that doesn't help when I walk away from the house. And for some reason it doesn't always work.




