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1-Way Voice

1-Way Voice (Listen-In) helps locate a missing person 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 caregivers 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 the voice feature be disabled during school hours due to privacy concerns or school policies.


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. The popup checks that you want to make a 1-Way call and to be sure 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.
  • 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 identify their surroundings of 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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