[bombcar]

As an aside some (most? All?) iPhones and carriers seem to support "WIFI calling" which lets you get calls and texts when you're on WIFI (and even outside of cell signal) - I get Ting calls and texts when I'm deep in my basement where no cell signal is available, as long as I have WIFI on.

I assume something similar exists for other carriers and phones (Republic Wireless is build around it).

There are also some land-lines that can get texts, but I don't know how they do it (I suspect they're actually a cell line disguised as one).