From the "at sea" services. Some of the services are run by WMS (Wireless Maritime Services). Some are run by Cingular/ATT. And some of the US cell phone companies have piggybacked onto the other services to allow use of your cell phone, even though your cell provider is not directly tied to the "cell at sea" program. http://www.cellularatsea.com/press/p...GoCellular.htm

The bills can be ASTRONOMICAL. And often come 2-3 months after you have used the phone.

I have 6 employees in Alaska all summer. They have been carefully instructed NOT to use their phones if there is anything other than the time and digital signal reading on the phones. Two years ago, bouncing calls off the ship cell towers and some of the local Alaska providers resulted in $1400.00 worth of ROAMING bills arriving at least 60 days after all my employees had left Alaska.

I argued and argued. Got one of the bills totally eliminated (Verizon's piggyback service to WMS), but got stuck with a Cingular at sea and two local providers bills. Not a good experience.