[VIDEO] Explorer 500/505: How to Activate Smartphone Assist
How do I activate smartphone assist (voice dial, Siri, etc.) using my headset?
Click on the image above to see a video on how to activate the Siri, voice dial, or other smart phone assist function from your headset.
To activate the smartphone assist function on your phone from the headset, press and hold the call control button for two seconds. You should now hear a tone that means the microphone on your phone is activated.