Lenovo H02 User Manual page 9

End the call
While talking, press the multifunction key once to end the call.
Voice
Please confirm whether mobile phones support voice function, if support, then
follow below steps to use voice function:
1.Press and hold the volume keys "+" or "-" for 3 seconds to activate voice function
on phone.
2.Press and hold the volume keys again for 3 seconds to exit voice function on
phone.
Latest Number Redial
Press multi-function key twice quickly.