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Telephone Functions

1.On/Off Button: Press to access a line to make a call; press again to end a call. Button has LEDs that light when On.

2.Program Button: Used in assigning numbers to the Memory Dial Buttons.

3.Bass/Treble Tone Control: Adjusts the tone of the other party’s voice to your preference.

4.Speaker Volume Control: Adjusts the volume of the sound you hear through the headset.

5.Flash Button: Hold for 1 second to end a call and reopen line to place a new call.

6.Mute Button: Press to activate Mute and disable the microphone, press again to enable microphone; LEDs blink when Mute is on.

7.Redial Button: Press to call the last number dialed.

8.Memory Dial Buttons (a, b, c): Automatically dials phone number programmed to the button; three numbers can be stored.

9.Ringer Volume Selector: Three position adjustment to set the volume of the telephone ring; top position sets to Hi, middle position sets to Low, bottom position turns ringer Off.

10.Dial Mode Switch (bottom of phone, not pictured): sets the phone to match your telephone service, touch tone or pulse dial.

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GN Netcom GN 4170 technical specifications