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Testing the headset system and the sound quality
18 | SD Series - User Guide
Adjusting the audio signal by means of the dial tone
1 Put on the headset and press the Phone button on the base station.
2 Press the Link button on the headset. The Link LED on the base
s
tation lights up blue.
3 Lift the handset. You hear a dial tone.
4 Set the ABC switch to the position A, B or C so that you can hear a clear
di
al tone in the headset.
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