Honeywell International Inc. HD-128 사용자 설명서

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HSD Aeronautical Transceivers 

56 

Placing voice calls from the aircraft to the ground is similar 
to placing an international telephone call. Air-to-ground 
calls need to include the following codes: 

•  An international access code (The international 

access code for all airborne equipment is 00. For 
ground-to-air calls, use the international code of 
the location the call is originating from.) 

•  The country code of your call destination 
•  The area code and city code (if applicable) of 

your call destination 

Before making calls, make sure that the HSD transceiver 
system is ready. Pick up the handset and listen for dial tone. 
Dial tone indicates that the system is ready. 

Satellite calls take longer than normal ground 
communications to complete—expect a short delay before 
your call rings through (approximately 30 seconds).  

To complete or ‘send’ your call, you must end your dialing 
sequence by pressing the pound key #. Pressing # signals 
the system to send your call.  

• 

Always remember to complete your 
dialing sequence by pressing #. This 
sends your call. 

• 

After a call is terminated, wait for the 
system to ‘clear down’ before placing 
new calls (approximately 30 seconds).