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1-Way Voice

1-Way Voice (Listen-In) helps locate a missing child indoors where GPS is ineffective. It is also used for well-being checks.




The Primary Guardian (person who completed the purchase) can edit which Guardians are authorized for calling the device.


The AngelSense subscription includes 60 free minutes. Typically parents do short well-being checks and the 60 minutes are more than enough. Additional minutes can be purchased in the AngelSense store, and these minutes never expire.


Some schools require that parents disable the voice feature during school hours due to privacy concerns.


In order to activate the 1-Way Voice (Listen-In) feature from your AngelSense app to the AngelSense GPS device:



  1. Go to the Voice Menu on the bottom of the app and click on “1-Way Voice”.
  2. You will receive a message to validate that you are wanting to make a 1-Way call and to give guidance to use the authorized phone number to call the device. Select ‘1-Way Voice’.

3. The telephone dialer will appear, displaying the device’s phone number. Start the call just like a regular phone call.


  • The AngelSense GPS device responds automatically, and 1-Way Voice mode begins.
  • During calls, the application does not receive GPS updates. If you are listening throughout the entire transit, the system will miss the transit.
  • Voice quality greatly depends on where the device is attached and the ambient noise. Often, background noise makes it difficult to hear, but you can usually understand what is occurring.
  • Excessive calls will drain a lot of power from the battery. Each listening hour uses 2 hours of battery life.
  • You can use 1-Way Voice to locate a child inside an indoor place
  • Only the authorized phone numbers are allowed to call.
  • Only two numbers can be authorized at a time to call the device. You can turn on and off authorization as needed in order to authorize other users.
AngelSense GPS Tracker Device

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