Dasan DW-770, User Manual, Page: 6 / 11

4
Answering a call using a telephone with Lifter attached

The telephone rings

While wearing the headset, press the ON/OFF button on the headset

The lifter function activates (telephone connection opens)

To end the call press the ON/OFF button on the headset

The lifter function will de-activate (telephone connection closes)
5
Adjusting the TX (transmit) volume
The TX (transmit) volume can be adjusted using the volume control located on the
bottom of the base unit.
Adjust the volume by pushing the control up or down button to increase or
decrease the level. The volume should be set to personal preference.
To adjust follow these steps:

Make a telephone call and ask the person you are calling for their assistance.

Adjust the volume as you talk by pushing the volume control up(+) or down(-)

Ask the person you are calling to tell you when the volume of your voice is
acceptable.

If the TX(transmit) volume is still low, then set the MICROPHONE
SELECTION switch located on the bottom of the base unit to “C”
6
Adjusting the RX (receive) volume
To adjust follow these steps:

Make a telephone call and ask the person you are calling for their assistance.

Adjust the RX (receive) volume by pressing the + or – (up/down) buttons on
the headset while your caller is speaking.
7
Muting the microphone

To MUTE the microphone on the headset press the MUTE button located on
the headset or Base unit.

To turn the MUTE off, press the MUTE button again. Normal operation will
now resume.
8
VoIP with PC

Connect USB cable (option) between PC and mini USB port of Base.

To make call or receive through, push the PC/TEL button first and then press
the ON/OFF button.
9
De-register all headsets

Press and hold the paring button on the base unit until BLUE LED starts to
blink fast, then release the button.

Press the pairing button seven times continuously. BLUE LED will be OFF.
10
Electronic Hook Switch
(DASAN DHSG cable: accessory)

The unit enables you to answer and end calls remotely by using its built-in
electronic hook switch (EHS). EHS of the unit is only possible on certain
telephone systems supporting DHSG protocol like Siemens.