Thrane&Thrane TT-3084A Sailor Fleet77, User Manual

Page: 15 / 168

The Inmarsat Fleet Service Introduction
2
Important notice: Before a terminal can be used on the
network, it has to be commissioned by one of the Inmarsat
Service Providers (ISP’s). In order to use the different
Inmarsat Fleet services it is necessary to have at least one
Inmarsat Mobile Number (IMN) for each of the above
mentioned services. In case all 8 services are
commissioned on your terminal, you will have 8 IMN
numbers.
Calling an Inmarsat Fleet terminal corresponds to making
international calls. If the satellite region/area is not known
for the terminal the “country” code for a terminal is 870.
When you dial up to an Inmarsat Fleet terminal through
the public network, you have to dial the IMN number in
addition to the international access code for Inmarsat, e.g.:
+870 600 555 555
Making calls from an Inmarsat Fleet terminal corresponds
to making international calls as the country code always
has to be dialed.
Service explanation:
The low speed services have a lower tariff than the high
speed services, as these are high quality audio or high
speed data services and thus require more bandwidth.
The 128 kbit/s UDI (Unrestricted Digital Information)
service enables 2 x 64 kbit/s or 2 x 56 kbit/s bi-directional
transmission of data to and from terrestrial ISDN networks
The 64 kbit/s UDI (Unrestricted Digital Information)
service enables the bi-directional transmission of data to
and from terrestrial 64 kbit/s ISDN networks. The 56
kbit/s UDI service is similarly used to make a connection
to 56 kbit/s ISDN networks, which are primarily used in
North America.
May 2005 7