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USER MANUAL
USER GUIDE
Calls to Mobiles
See figure.
The Nera F33 terminal receives incoming calls via
the IMN phone numbers. IMN numbers are assigned
to the following ports by the user:
• ISDN ports
• RS-232 serial data ports
• RS-422 serial data port
• USB serial data port
Calls are made as ordinary international (Satellite)
calls by dialing the international prefix (normally 00)
followed by 870 and the IMN number, e.g.:
00 870 762420510.
The common Ocean Region access no. 870 con-
nects the call to the dialed Nera F33 regardless of
the Ocean Region the user currently communicates
through.
If the Net service provider does not support access
no. 870, call the Ocean Region directly:
871 – AOR-E (Atlantic Ocean Region East)
872 – POR
(Pacific Ocean Region)
873 – IOR
(Indian Ocean Region)
874 – AOR-W (Atlantic Ocean Region West)
Nera F33
SYSTEM DESCRIPTION
Call announcement from fixed to mobile:
The LES uses the MES's Forward Identity (FWID) to
communicate with the MES, and the Terminal Identity
(TermlD) to identify the IMN number and the service
in use.
The FWID together with the TermlD replaces the
need of the IMN number to be transmitted through
the Inmarsat system in order to identify the MES and
the specific equipment attached to it. This means
that LES routes an IMN number received from the
fixed net to the specific FWID and TermlD identifying
the MES.
The MES identifies the FWID and the TermID and
routes it to a Mobile Subscriber Number (MSN)
which is programmed in the attached equipment.
Nera provides a table to identify which TermlD is
routed to an MSN.
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CONT
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