Originally Posted by
Sholey
You need to use a SAT phone on board and it’s VERY expensive. Try carrier pigeon instead!

Rentals can be pricey for the equipment-although if you REALLY need to keep in touch, cheaper than the ship's phone or cell at sea.
My company owns two sat phones. I always take one with me anytime I leave the US. Have been true lifesavers in a couple of situations. The airtime charges are not nearly as high as they used to be.
Rental and airtime info:
http://www.worldcell.com/web/page/10.../travelers.asp