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Group Call - PTT function

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Revision as of 14:38, 31 October 2017 by Asle (talk)
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This article describes how to configure a DAK key on a station to activate a Group Call when the key is pressed, and cancel the group call when the DAK key is released.

Configure the group to use "Automatic M-key"

In AlphaPro, select the Group Call, and enable "Automaic M-key". When enabled, there is no need to press the M-key to open the microphone during the group call: File:GroupAutoM.png


In the Event Handler, the event 30 (Station DAK or Input) is triggered when a DAK Key is pressed.

The following event will activate group call 85 when the DAK key number 3 (= Subevent 3) is pressed, and cancel when the key is released.


Configuration

In the following example the volume will be set to level 6 when group call 86 is called from stations in UDP group 2. The volume is set to level 3 (default) when the group call is ended.

When stations outside UDP group 2 dial group call 86 this event will not be triggered, and the volume will not be altered.

In AlphaPro, go to Exchange and System -> Events, press Insert and create the following event (the action strings can be copy/paste from here into AlphaPro):

Event Owner: Stations with UDP: Id: 2
Event type: 08 - Conversation Outgoing
Sub event: 0
When change to: ON or OFF
When related to: Directory Number, Id: 86
Action:  
IF %chg(1,0)
$DD L%1.dir L85
stop 
ENDIF
$C L%1.dir

Note that in the DAK table the DAK key 3 must be blank.