Announcement of Service Termination

As of September 30, 2014, new applications for the INMARSAT B service are no longer accepted and the service will no longer be provided as of December 31, 2016.
As an alternative service, INMARSAT FB (Fleet Broadband) and KDDI Optima Marine Service are offered.
Click the link below for details.

INMARSAT FB (FleetBroadband)
KDDI Optima Marine Service (in Japanese only)

Overview & Features

From the INMARSAT B equipment, you can send faxes and use data communications (at 9600 bps) through telephone lines, as well as use telephone and telex services.

Further, with devices equipped with the HSD (High Speed Data) feature, you can transmit data at speeds of 64 kbps between communications terminals connected to an ISDN line.

Inmarsat HSD (in Japanese only)

For information about INMARSAT B service areas, refer to "INMARSAT service areas" below.

INMARSAT service areas