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comply will answer the call within 4½ minutes by sending a DSC Acknowledgement contain-
ing information on working frequencies for the subsequent traffic. When acknowledgement is
received lift the handset to set the radio to the working frequencies.
Displays the contents of the acknowledge-
ment
Sets mode and frequency as indicated in
the acknowledgement
If no acknowledgement is received within 5 minutes, the equipment returns to the previous
telephony display and starts scanning if selected.
Direct Dial Calls:
If phone a number was included in the call then immediately after reception of the acknowl-
edgement the DSC call is repeated on the working frequency. This call may be used by the
coast station for channel quality evaluation. If the channel quality evaluation indicates that
communication will be satisfactory, the coast station sends a DSC acknowledgement and
starts dialing the subscriber number. Dialing tones may be heard in the speaker or handset.
When the handset is placed on hook after a Direct Dial call a DSC call indicating ‘End of call’
is send to terminate the connection.
The coast station may respond with a DSCall indicating the chargeable duration of the
connection.
Sending an All Ships Call
This call type is used for announcing a vital safety or urgency message.
Press Call button
Select EXTENDED call menu
Select ALL SHIPS format
Selects the category
Steps between selectable categories
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