I got really lucky in my set up. I can text( both iMessage and SMS/MMS ) and make and receive calls on my WiFi only iPad. I was running blind at the time, and went on guesswork and intuition. I might add that if you are having issues with an email account, it could be the provider. My go daddy based email is a mess, and to send out from it on any platform, I have to go to the webmail page! I can receive and edit, but never send out. It is go daddy’s fault, and they have NO idea what they’ve done....Oh well, it’s not my primary address, I have three total, and all seamlessly dump into the same inbox here on my Apple devices. Oh, well....... L