Fido

Thinking of suspending service while we go south for several months. Does that suspend cell service or the actual phone number? In other waords, could we still recvieve texts in a WiFI zone? 

In September we used WhatsApp several times to make some long distance calls to an international airline. I received the Fido bill with $78. worth of charges. The calls were done on the app using WiFi. There is no other way to use the app and no way ...