Automatic 911 dialing (Auto outgoing call performed)

When an accident occurs under specified conditions, the SAS control module sends a fuel cut request signal to the CMU.
When the CMU receives the fuel cut request signal from the SAS control module, it sends the guidance audio signal to the remote tuner (RT). In addition, it sends the Automatic 911 dialing screen display signal (GMSL signal) to the center display.
The remote tuner (RT) sends the guidance audio signal to the speakers and the speakers output the guidance audio. In addition, the center display displays the Automatic 911 dialing screen.
The CMU executes the 10 s timer after the guidance audio output.
After 10 s have elapsed on the timer, the CMU sends an outgoing call signal to a mobile device such as a Bluetooth® enabled mobile phone or a Smartphone.
When the mobile device, such as a Bluetooth®-enabled mobile phone or a Smartphone, receives the outgoing call signal, it calls the PSAP (Public Safety Answering Point).
After connecting to the PSAP (Public Safety Answering Point), the CMU outputs the vehicle position information from the vehicle speakers and initiates the call.

Courtesy of MAZDA MOTORS CORP.