In order to use the Live Audio, you will need to add your cell phone as the authorized number (this is called the SOS number).
You will only need to set this up once.
The easiest way to set your cellphone as the authorized number is to use the Logistimatics mobile app. Inside the app, go to Commands > + > Set SOS Numbers
You can also set the SOS number via text message. Text the following to your tracker’s phone number:
After the SOS number has been set, you can simply call the tracker's phone number from your cellphone. It will silently pick up and you will hear what's going on at the trackers location.