Samsung HS3000 User Manual page 22

Options available during a call
You can use the following functions during a call.
Adjusting the volume
Press the Volume up or down button to adjust the volume.
You will hear a beep when the volume level of the headset reaches
it's lowest or highest level.
Muting the microphone
Press and hold the Volume up or down button to turn the microphone off
so that the person with whom you are speaking cannot hear you. When the
microphone is turned off, the headset beeps at regular intervals. Press and
hold the Volume up or down button again to turn the microphone back on.
Transferring a call from the phone to the headset
Press the Talk button on the headset to transfer a call from the phone
to the headset.
Placing a call on hold
Press and hold the Talk button to place the current call on hold.
This function is only available when using the Hands-Free profile (HFP).
For more information, see your phone's user manual.
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