Okay... great suggestions. I don't have FaceTime on my phone as it was purchased in the Middle East. Also, a lot of businesses will only use Mobile, so....
Don't laugh... but I cannot seem to get 'Voice and Data' settings on my phone. It isn't there (I went to 'Settings', then to 'Cellular' then to 'Cellular Data', but the only options there are 'Off' or "Primary' and then at the bottom 'Allow Cellular...