BenQ Z2 - Manual (Page 39)

Using Your Phone 23
Using Your Phone
Call Functions
Making a Phone Call
From the idle screen, enter the phone number using to .
Press to dial your call.
Ending a Phone Call
To end a call, press . The display will show the total call time, and
then return to the idle screen.
Answering a Phone Call
To answer a call, press .
If you wish to change the answering mode, go to Settings > Call
Settings > Answer Mode.
Selecting Any Key will allow you to press any key to answer a call.
If the handsfree headset is connected to the phone, selecting
Automatic will enable the phone to automatically answer a call after
ringing for five seconds.