When I use bluetooth headset, why does my iPhone dial last out going call on it's own?

[iMore Question]

When I use bluetooth headset, my iphone dials by itself the last outcoming call.

iPhone 5s, iOS 8.1

 

[Just_Me_D]

Re: When I use bluetooth headset, my iphone dials by itself the last outcoming call.

Are you certain that you aren't pressing an auto-redial function of the bluetooth headset? What brand of bluetooth headset are you using?