Konftel 100/D - Manual (Page 10)

ENGLISH
8
KEY SET
Key functions
1 On/Off-key Turns the Konftel 100/D on and off.
2 Mute key Turns the microphone on and off.
3 + and – keys Repeatedly pressing these keys increases /
decreases sound level in the loudspeakers.
After a completed call, Konftel 100/D retains
the latest volume settings until they are
changed again.
3 1 2 3