NEC SL1100Digital User GuideOperational UseHandpiece - Simply lift handpiece to useSpeaker - Press Speaker button to activate/deactivateHeadset - Press Headset key to activate/deactivateSpeaker (Hands Free Operation)Press Speaker Button to activate/deactivateEnsure that the MIC button is on (by pressing the MIC button)Indicated by RED Led in buttonIf MIC key is not on, the call is muted.Volume ControlVolume Keys are the UP and Down key on Rotary buttonPress UP or DOWN to change the volume whilst using each FunctionHandpiece off hook [ Adjusts the handpiece volume ]Speaker activated [ Adjust the speaker volume ]Phone ringing volume [ While the phone is ringing ]Phone LCD display [ Adjust the LCD contrast while phone is idle ]Internal CallLift handpieceDial extn number or press one touch keyExternal CallLift handpieceDial 0 for outside line or select line key e.g. Line1Then dial numberPlacing Call on HoldWhilst on a callPress the HOLD key, you can place handpiece back downGreen Flashing LINE key is the call your Extn has on HOLDRed Flashing LINE key is a call that another extn has on HOLDTransferring Calls- AnnouncedWhilst on a call- place call on holdDial the extn number or press one touch keyAnnounce the callPress Transfer key