Looking at the map, it covers the port cities.

Mrs. Moose, we have to call home everyday since we are the primary contacts for a 94 year old mother in law in a "Retirement Hotel".

You will be in port daily to be able to get and receive calls. We used the phone at sea once and a 5 minute call was outrageously expensive, but I had received an internet message that our office was broken into and I wanted to dicuss it live - not via internet.

Alaska, while remote, is not like going to a foreign port. Is is a State in the USA and while a few things might be limited or more expensive than say Los Angeles, you will not lose contact with those at home, you will be able to have a conversation with everyone, you can read signs and menus and you will be in the midst of breathtaking scenery.