Answering a call
When handset is an incoming call, a melody will come out of HFB-300 and the blue LED
will flicker rapidly 4 times.
Press Call/Power Button while the handset is ringing.
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HFB-300 is available to start conversation.
Last number / Voice dialing
To make last number call, press Call/Power Button shortly (with beep sound once).
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In some cases of Bluetooth enabled handset, user need to press Call/Power Button twice.
To activate Voice dialing, press and hold Call/Power Button little bit longer (with two
beep sounds in a row).
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It's possible to use this function only when the user's handset supports.
Ending a call
To finish calling, press Call/Power Button.
Call Waiting
To receive a second call while answering the first call, press and hold Call/Power
Button for more than 2 seconds.
To get back to the first call, just press and hold Call/Power Button again.
Speaker Volume Control
Press Volume (+) Button to increase the speaker sound, and press Volume (-)
Button to decrease.
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The volume level runs from 1 to 8.
Microphone Volume Control
Press Function with Volume (+) Button simultaneously to increase the Microphone
volume, and press Function
Volume (-) Button longer at the same time to decrease the Microphone volume.
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The volume level runs from 1 to 4.
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Whenever changing Microphone volume level, user can hear serial sound according to
the level of the volume.
(ex. Level 1 : sound once, Level 2 : sound twice, and so on.)
Mute Function for Microphone
To make mute Microphone during an active call, press Function Button shortly.
When Function Button pressed again, Mute function is just cancelled.
Transferring Audio
Handset =>HFB-300
When user want to transfer Audio from handset to HFB-300 while calling, press
