Samsung ASBH500JRECSTA - Manual (Page 19)

16
Dialing a number by voice
Press and hold [ ] to dial a number by voice, and say a name
into the microphone.
Answering a call
When a call comes in, you may hear a tone and the indicator
light will flash blue twice. Press [ ].
Ending a call
Press [ ] when you have finished the conversation.
Rejecting a call
Press and hold [ ] as a call comes in.
This is available only when your phone supports the voice
recognition function.
This is available only when the phone supports the incoming
call rejecting function.