We are enjoying both our cell phones from T Mobile this trip. Most of our calls have been made with either whatsapp, or with facebook messenger. one or two calls were made without wifi, and for the measly price of 25 cents per minute, i really don't care.(calls have been short). This is still much cheaper than renting a phone, and ''buying minutes'' for local carriers. As stated, most restaurants i have seen are using the whatsapp also, so in two full weeks here, i think my phone has cost maybe one or two dollars.