Konftel 100 R - Manual (Page 9)

Key functions
1 On/Off key Switches KonfTel 100 R on and off.
2 Mute key Switches the microphone on/off.
3 + and – keys Pressing repeatedly will increase or reduce the
loudspeaker volume. After the call, KonfTel 100 R
remembers the set volume until it is changed
once more.
These keys can also be used to make the
ringing signal louder or lower by pressing
or when KonfTel 100 R is switched off.
KonfTel 100 R is adjusted by pressing the
and keys simultaneously during a call.
3 1 2 3
KEY SET
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