Dear all: First I checked with the FAQ but couldn't find the answer. My mother-in-law who won't be going on to the Disney Dream cruise with us, are not in a good condition (she is 82 yrs old). So while we are cruising, my wife might have to call her (in LA) from time to time. Just wondering how the calling rates are calculated while we are onboard, and whether there will be a period that we could still get some signal (while the ship is near Port Canaveral or Castway Cay, etc.) through our cell phone carrier (T-Mobile)??? Any experience about this? Also while we are at Nassau, would it be possible to buy a phone card or something like that to make an international phone calls back to LA? Many thanks!