Dynamic Group Call

Today´s topic of INDUSTRONIC functions is the “Dynamic Group Call” which allows to establish a call to a freely selectable group of members.

One Subscriber Speaks – All Selected Members Listen

A dynamic group call provides communication in one direction (unidirectional) where one subscriber speaks and all selected members of the group listen simultaneously (Point-to-Multipoint connection). Members and targets can be acoustic devices of any type (e.g. speakers, intercom stations, etc.), audio interfaces, SIP subscribers and/or radio subscribers.

You use this function if you want to transmit information to an individual group of different subscribers of a communication and public address system.

Communication Procedure

The operator at Station A presses the corresponding key to activate the mode for setting up a dynamic group call. After that, he selects all members of the group which should receive the call by pressing the corresponding keys. Then, he presses the Speak to Selection key, keeps it pressed and speaks into the microphone (Push-to- Talk). All previously selected members listen to the announcement simultaneously.

The following illustration shows a dynamic group call which consists of Station D and E as well as the Speaker Zones A and B.

Priorities

You can assign an individual priority for each dynamic group call. This means that an active call overrides functions with the same or lower priority. It can only be interrupted by a voice connection or function with a higher priority.

Pre-tones and Warning Beacons

It is possible to play back a pre-announcement tone prior to a dynamic group call or the actual message. A positive effect is that listeners stop their conversations or noisy activities to focus on the announcement that follows.

Furthermore, there is the option to activate flashing warning beacons which indicate the call visually.

Download a more detailed version of this blog article as PDF here.

See also my previous articles about the related functions Group Call and All Call.

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