Nortel C4012 User Manual

Contents

11C 40 1 2 Ha nds e t S ta nda rd 2 .0 0Using the C4012 handsetSwitching the handset on/offTo switch the handset on, press o for more than 2 seconds or place thehandset in the charger.To switch the handset off, press o for more than 2 seconds when thehandset is in an idle state.Locking/unlocking the keypadTo prevent accidental operation, press Pa to lock the keypad. Thedisplay shows --------. To unlock the keypad, repeat the above procedure orplace the handset in the charger.When the key lock is active, calls can be answered normally. To use otherhandset keys during a call, unlock the handset as described above.Switching speech monitoring on/offDuring a conversation, speech monitoring activates the loudspeaker, enablingyou to hear the other party without placing the handset to your ear.To toggle speech monitoring on or off, press M.Changing the speaker and loudspeaker volumeDuring a call and in idle state, the speaker and loudspeaker volume can bechanged (low/high—effective for speaker and loudspeaker).To toggle the speaker and loudspeaker volume, press Pn. The lastselection is remembered and valid.Muting the microphone and ringerTo mute the microphone, press C.To mute the ringer during alerting, press C.