Quote Originally Posted by sandman66 View Post
Can that app be used with a WiFi connection? I plan on bringing a old iphone, but it won’t have any data or plan attached.
Saying that, how difficult is it to make my unlocked iphone work for regular calls? Can someone explain in simpleton terms?
If your phone connects to WiFi and you have a working WhatsApp installed, you are good to go.

I know people who don't even make regular phone calls anymore - They only use WhatsApp! No phone plan data necessary - just a WiFi connect!