Hi: On our six month trip to the USA last winter; Washington; Oregon, Calif, Arizona, etc , etc to Key West. We picked up a prepaid cell phone in Oregon for 39.95 including 100's of minutes of within US calling. But we also have SKYPE and used that, whenever we had wi-fi ,to call the kids in Canada. At 2cents a minute Skype is hard to beat. When we did have a emergency our cells batteries were flat. Live and learn. At 80 I am still learning the hard way. Regards Dick K.
Dick and Ollie