Chapter 3: Operate the system
62 SB-Safety Voice
Make and answer an SB-Safety Voice call from the
cockpit
You can make and answer SB-Safety Voice calls from the cockpit.
Incoming call
Incoming calls are announced with a visible indicator in an annunciator
panel and an audible indicator. The annunciator panel has typically three
functions:
• Showing fail on the SB-Safety Voice service
• Showing an incoming call
• Showing the priority level of the active and incoming call
The following figure shows an example of an annunciator panel.
The SBU indicates the incoming call by lighting the SBB annunciator and
flashing with the priority indicator for indicating the priority level of the
incoming call (1, 2 or 3).
If the aircraft is in a critical flight phase e.g. takeoff and landing, there are no
audible alerts for incoming calls. Then the SBB indication signal will not
indicate an incoming call. The priority level indicators will still flash. If a 2-
wire headset or handset with built-in ringer is used, the ring signal will also
be inhibited. In both cases you can answer the call as normal.
Dialing
Depending on your system setup you may be able to dial manually or you
can use speed dialing from an embedded directory in the dialer. Inmarsat
short codes can also be used.
6$792,&(67$786
&$//35,25,7<
6%%
&$//
)$,/
6%%
)$,/
If you want to make a call with a short code from Inmarsat
(6 digits) or your service provider (5 or less digits), do not use any
call prefix or country code.
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