Seattle-based SeaMobile Enterprises said today that it has signed an agreement with Holland America Line to provide wireless cellular phone and services for Holland's guests around the world.

SeaMobile provides connectivity at sea for cellphones and other devices.

The company said installations of wireless broadband communications on Holland America's entire fleet of 13 ships will begin later this year.

The SeaMobile communications service will allow guests and staff of Holland America's ships to use their own cellphones and wireless PDAs on different types of technology, including GSM, GPRS and CDMA.

Worldwide roaming agreements provide connectivity for wireless services. Charges for calls and data services appear on the user's wireless bill from their home carrier.