Help Bluetooth problem with Xperia Z 5??

[kitharass]

I have paired my bluetooth handsfree with xperia z5 premium. When i recieve or send a call it automatically turns to audio handset mode. Everytime i have to slect audio output: bluetooth manually to use via bluetooth. Any way to solve it?

 

[Slug]

Open Settings/Bluetooth and tap the "cog" icon next to the handsfree set in the list. Ensure that Phone audio is enabled. Click "OK".

If the problem remains then the issue is with the handsfree device's implementation of the Phone audio profile; any solution has to come from the manufacturer of the device.