E F Johnson Company 2425795 Benutzerhandbuch

Viking™ VP600 Portable Radio Operating Manual

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4 When a Unit Call is received, “Call Recvd” and the alias of the unit ID are alternately 

flashed.

5 To respond, select the Unit Call mode by pressing the Unit Call option button or 

selecting the menu parameter.

If the call timer times out (set by programming) then “Timeout” is displayed and error 
tone sounds. If the channel is changed before a response is made, the unit call mode is 
exited.

Telephone calls can be placed and received on P25 conventional channels. For P25 
Trunked/Conventional/Smartnet/SmartZone Telephone Calls, the Land Mobile Radio 
System must be connected to a telephone system. Users should check with the System 
Administrator to see if Telephone Calls are allowed on their system. Telephone calls are 
programmed to operate in one of the following modes:

• Disabled.

• Answer-only capability.

• List only - Telephone numbers can be selected from a pre programmed list only (direct 

entry using the keypad is not allowed).

• Unlimited - Telephone numbers can be selected from a list and also dialed directly 

using the keypad.

Both limited and DTMF keypad models can place telephone calls by recalling the 
telephone number from a pre programmed list as just described. However, only DTMF 
keypad models can directly dial telephone numbers using the keypad.

P25 conventional telephone calls use an access code to access the system when placing a 
telephone call, and a de-access code to terminate the call when it is finished. These codes 
are pre programmed in pairs, and up to 255 pairs can be programmed. Each conventional 
P25 channel can be programmed to automatically select one of these code pairs. They 
must match the system codes, and the default code is *1P# (the P represents a pause).

To recall from a list:

1 Select the conventional channel that is programmed to select the desired access and de-

access codes.