Embraer EMB145 Operation Manual page 2425

OPERATION
This section contains information on types of calls and procedures for
dialing and completing calls.
GROUND CALLS
All ground-to-air calls must be placed as international calls. Each
INMARSAT Satellite has an assigned three digit code that is, for all
practical purposes, the country code for the satellite. It is necessary to
first dial the international access code that is used in your country,
followed by the satellite country code and the number issued by the
Ground Service Provider for the Airborne Earth Station (AES). In some
countries, call routing by the Public Switched Telephone Network can
be routed to the "870" country code. "870" is the Single Network
Access Code (SNAC). SNAC is a special country code that contacts
the Network Coordinating Station for INMARSAT Aero-M services and
automatically routes the call to the satellite that Airborne Earth Station
is logged on to.
In countries where calls do not route to 870, it is necessary to manually
include the appropriate country code for the INMARSAT Satellite that is
serving the Airborne Earth Station. If the incorrect satellite/country
code is dialed, an automatic response will inform that the station you
are calling is not currently logged onto this ocean region. If you are
sure the AES is logged on to a satellite, you can redial the number
using another satellite country code in order to contact the AES.
Country codes for the INMARSAT Satellites:
AREA / OCEAN REGION
Single Network Access Code
Atlantic Ocean Region East
Pacific Ocean Region
Indian Ocean Region
Atlantic Ocean Region West
JUNE 29, 2001
AIRPLANE
OPERATIONS
MANUAL
SNAC
AORE
POR
IOR
AORW
NAVIGATION AND
COMMUNICATION
INTERNATIONAL
ACCESS CODE
870
871
872
873
874
Page
3
2-18-28
Code
01