I've been able to make a call using a Plantronics Legend bluetooth headset connected to my Samsung S5 as long as the screen is unlocked. However, when the screen is locked, nothing seems to happen. When I then unlock the screen, I can see that the S-voice app started but did not initiate the call. Is there a setting that will allow this to work?
My company policy requires that the screen be locked with a pin so I don't have the option of disabling this feature.