Answering landline calls with yourheadsetTo answer a landline call, turn on yourheadset referring to your headsetoperating instructions.When you finish talking, turn off yourheadset referring to your headsetoperating instructions.Note:R If you cannot hang up the call usingyour headset;– press MnN (STOP) on the base unit.(KX-TG7621 series: page 3)– press MSP-PHONEN on the baseunit 2 times. (KX-TG7641 series:page 3)Switching between the base unit andyour headsetYou can switch between the base unitand your headset:– during a landline call with the baseunit speakerphone. (KX-TG7641series: page 3)– during an intercom call between thebase unit and handset. (KX-TG7641series: page 3)– while listening to messages recordedon the base unit answering system.*1n KX-TG7641 series: page 3To switch to your headset:Press MHEADSETN on the base unit.To switch to the base unit:Press MSP-PHONEN on the base unit.*1 KX-TG7621 series: page 3R You can only switch from thebase unit to your headset. Turnon the headset referring to yourheadset operating instructions.Call sharing between your headsetand the handsetImportant:R To activate this feature, you shouldset call sharing mode to onbeforehand (page 44).n While the handset is on a landlinecall:To join the conversation with yourheadset, turn on the headsetreferring to your headset operatinginstructions.n While your headset is on a landlinecall:To join the conversation with thehandset, press M N.Adjusting your headset receivervolumeBase unitn KX-TG7621 series: page 3Press MjN or MkN repeatedly whileusing your headset.n KX-TG7641 series: page 3Press MDN or MCN repeatedly whileusing your headset.56 For assistance, please visit http://www.panasonic.com/helpUsing Bluetooth Devices