Bug report, Moto X, Plantronics Voyager Pro Headset
Equipment: Moto X XT1053 running Android 4.4 completely stock; Plantronics Voyager Pro headset
--Start Bluetooth, connect headset to phone, dial a phone call; OR
--Start Bluetooth, connect headset, answer a call.
--Outgoing call either (1) begins and stays in handset mode or (2) begins in Bluetooth mode but reverts to handset mode as soon as the call proceeds from ‘Dialing’ to ‘Connected’
--Incoming call headset connection drops out the instant the call starts ringing and reverts to handset mode.
Incidence: Frequent, but irregular
--Disable headset Media Mode, cold boot
--Disable all and any auxiliary Bluetooth features (trusted device, etc)
--Enable all and any auxiliary Bluetooth features
Other tests and equipment tried:
--Using the Plantronics Voyager Pro on a Nexus 4 (Android 4.4) no problems.
--Using an older model Plantronics 520 bluetooth headset, likewise no problem whatsoever.
Why it’s critical:
For safety, I use Bluetooth headsets 100% of the time when driving—no exceptions. To have to pick up the phone, divert attention from driving in order to switch phone from handset mode to Bluetooth mode during a call is very unsafe