Nokia HS 54W - Manual (Page 12)

12 Copyright © 2005 Nokia. All rights reserved.
If your phone supports redialing, press and hold the volume up key of the headset
until it beeps (when no call is in progress).
If your phone supports voice dialing with the headset, press and hold the volume
down key of the headset until it beeps (when no call is in progress), and proceed as
described in the user guide of your phone.
Answer a call
To answer a call, press the power/call key, or press the answer key on your phone.
If the automatic answer function is set on in your phone, the phone automatically
answers the incoming call after one ring.
If you do not want to answer a call, press and hold the power/call key for
3 seconds.
End a call
To end the currently active call, press the power/call key, or press the end key on
your phone.
Mute or unmute the microphone
To mute or unmute the microphone during a call, press and hold the power/call
key and the volume up key simultaneously, until you hear a beep.