title: Asterisk - Push-to-talk feature
body: <p>I would like to have a Push-to-Talk service deployed with Asterisk. The idea is that one user presses a button to talk/send a voice message to any other user or a group of users registered in asterisk.</p>
  
  <p>Does anyone know if this is supported by Asterisk or how it could be implemented?</p>
  
  <p>Any idea would be very welcome,
  thanks for you help,
  best regards.</p>