58 CHAPTER 6: P ERSONALIZING Y OUR TELEPHONEUsing a Headset You can use a headset with a microphone with any NBX telephonesThese instructions are for a typical headset and amplifier. You may needto modify some of these instructions for some types of headset oramplifier equipment.To use a headset for all calls:1 Insert the cord for the headset amplifier into the handset cord'sreceptacle on the underside of the telephone.2 Insert the cord for the headset into the headset amplifier.3 Pick up the handset off the phone and leave it off.To use either the handset or the headset for each call:1 Insert the cord for the headset amplifier into the handset cord'sreceptacle on the underside of the telephone.2 Insert both the headset cord and the handset cord into the headsetamplifier.3 For headset calls: Pick up the handset off the telephone and leave it off.4 For handset calls: Press the button on the headset amplifier that turns theheadset off, pick up the handset, and speak into it.When you use a headset, either the headset or the amplifier is pluggedinto the handset cord's receptacle on the underside of the telephone.Although the handset may be plugged into the amplifier, you mustremove the handset from the cradle to use the headset.