E F Johnson Company 2425770 Benutzerhandbuch

6-6 

Viking Portable 600 Radio Operating Manual

- The called party does not answer. Press the Private Call option button or <F1> (Exit) 

to end the call.

- If the selected radio ID is not valid, “Invalid ID” is displayed and an alert tone 

sounds.

- If the radio system is busy, four low tones sound and “Busy” is displayed. When the 

system is no longer busy, the call back tone (four beeps) is heard and the channel is 
automatically acquired. Press the PTT switch to continue the call.

- If the call is in the secure mode and the radio does not have the proper encryption key, 

“Key Fail” is displayed and the call must be made in the clear mode by pressing the 
Clear/Secure option button or selecting that menu parameter (if strapped to 
switchable). Otherwise, load the correct key.

4 When the call is finished or if it is not answered, end it by pressing the Private Call 

option button or the <F1> (Exit) button.

When a private call is received, “Call Rcvd” is displayed and the call tone sounds once.

To answer the call, press the Private Call option button or select that menu parameter and 
then press the PTT switch and begin speaking. The unit ID of the calling radio is 
displayed. More information follows:

- If the PTT switch is pressed before the Private Call option button, the call is 

transmitted as a group call.

- If private calls are not permitted (the Private Call option button/menu parameter is not 

programmed), press the Call Response option button or select that menu parameter to 
answer the call.

- Ring times for both Tx and Rx radios are programmable in P25 Trunking, which sets 

the maximum ring time of the target radio when receiving phone and unit-to-unit 
calls. When this time expires, the call is automatically discontinued. Times of 61-120 
seconds can be programmed with 61 seconds the default. 

- The Private Call Maximum Int Ring parameter sets the maximum time the initiating 

radio rings when placing a unit call (phone calls not included). Ringing stops if the 
target radio answers before this timer expires. Times of 1-255 seconds or infinite can 
be programmed, with 30 seconds the default. If infinite is programmed, ringing 
occurs until the target radio answers.)

- If the system is busy when a response is made, the busy tone sounds.