AL - Ambient Listening

In MCPTT ambient listening is a feature that allows a call to be instigated on an end user’s device without that device indicating that it is transmitting. Initiation of ambient listening can be done by an authorised MCPTT user that wishes to be listened to, or alternatively by a remote authorized MCPTT user, such as a dispatcher.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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