@shiqing843 We actually don't want alerts on the Xiaomi so that worked
out perfectly But I asked a friend who has an Oppo which has been
flashed with android GSI (think of it like a rom that makes the phone
almost "stock" android). It can get alert...
Thanks for the correction @computergeek541and @Hiteshgrand. I should
have read it more carefully lol. There is still the voip option if you
want to keep costs down. But it is way more work to set up and use and
will (kinda) still involve two numbers.