Samsung HM3100 Manual page 43

Rejecting a call
Press and hold the Multi-Function button to reject a call when a call comes in.
When two calls from the two connected phones come in, you can reject the call
of the first phone.
This function is available only on the Hands-Free profile. For more information,
see your phone's user manual.
Using options during a call
You can use the following functions to control your call during a call.
Adjusting the volume
Press the Volume up or down button to adjust the volume.
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 Multi-Function button to transfer a call from the phone to the headset.
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