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4-25
Operation with a Full Function Handset
Response
If a response is received after pressing the PTT key, a receive-confirmation
message is displayed. After 5 seconds have elapsed, the channel is shifted
to a communication channel and the Individual Call is completed.
ACK 5 sec
If no response is received for 3 minutes after pressing the PTT key, a
prompt to press the PTT key appears once more. If the PTT key is not
pressed within 15 seconds after the prompt appears, operation returns to
the state before the call.
NO ACK
Scrolls every second
3 min
PTT
PTT
4.4.16.3 Receiving an Individual Call
When an Individual Call is received, the DSC indicator flashes, Ind appears
on the 7-segment display, and the DSC Received Alert is sounded. On the
dot matrix display appears the message RECEIVED IND CALL along with
the type of call: ROUTINE, SAFETY, or URGENCY. If the MMSI number
exists in the Phonebook list, the associated name is also displayed. If no
match is found, the actual numeric value of the MMSI is displayed. Lastly
appears a prompt to press ENT to accept or CLR to log the call. This
sequence scrolls every second.
Until either the ENT key or the CLR key are pressed, the prompt is flashed
at 1-second intervals and is accompanied by an alarm for up to 3 minutes.
If neither ENT nor CLR are pressed during these 3 minutes, the radio
reverts to the operation mode before receiving the Individual Call. The
DSC indicator continues to be flashed on the LCD display until the contents
of the log files can be confirmed.