New Lack Of Bluetooth Headset Features

Oct 9, 2015
I'm using RN2 with last weekly release.

I'm frustrated about lack of basic bluetooth feature, which used to work like charm with old nokia phones.

My headset is plantronics explorer 50

I'm not able to control music (play/pause) start google now, voice dialler or other stuff. Installing third party apps doesn't help.
Single press or long pres call button simply do nothing on miui phones. It looks like system doesn't recognize this event.
I've checked this on samsung and headset works fine(single press starts s-voice).

Double click to redial works normally.

Does official ROM have the same issue ?
Does single/long press works witch xiaomi bluetooth headset ?