I have voice action and bluetooth question??

[Ms Charli]

I have the plantronics discovery 975. I have a pair with my Droid Maxx, but I can't seem to get the voice actions to work so that I can use hands free dialing. Usually all I have to do is press the button on my on the headset and I would here "say a command" through the headset, but this isn't happening! I know it should work any suggestions??

I'm not using a third party app!