Programmable Settings38 For assistance, please call 1-800-211-PANA (7262).Other optionsHandset key toneYou can select whether or not key tonesare heard when keys are pressed.Includes confirmation tones and errortones. The default setting is ON.1 Press {MENU}.2 Scroll to “Initial setting” bypressing {V} or {^}, then press {>}.3 Scroll to “Key tone” by pressing {V} or{^}, then press {>}.4 Press {V} or {^} repeatedly to select“On” or “Off”.5 Press {Save}, then press {OFF}.Re-registering the handsetIf “No link to base. Move closerto base, try again.” is displayedeven when the handset is near the baseunit, you may need to re-register thehandset to the base unit.Important:L Make sure the base unit is not beingused.L Have the handset and base unit neareach other when re-registering thehandset.L KX-TG2422 only:Confirm the extension number of thehandset which has lost thecommunication by placing the handseton the base unit or charger.If you re-register the handset using theother handset’s extension number [1]or [2], the other handset will notfunction.1 Handset:Press {MENU}.2 Scroll to “Initial setting” bypressing {V} or {^}, then press {>}.3 Scroll to “Registration” by pressing{V} or {^}, then press {>}.4 KX-TG2421 base unit:Press and hold {HANDSETLOCATOR} until the CHARGEindicator flashes.KX-TG2422 base unit:Press and hold the locator/handsetbutton that corresponds to the handsetyou want to re-register ({HANDSETLOCATOR 1} or {HANDSETLOCATOR 2}) until the CHARGEindicator flashes.L After the CHARGE indicator startsflashing, the rest of the proceduremust be completed within 1 minute.5 Handset:Press {OK}, then wait until the handsetbeeps.L Registration is complete.Customer supportThe handset can display the Internetaddress where you can downloadoperating instructions for this productusing your computer.1 Press {MENU}.2 Scroll to “Customer support” bypressing {V} or {^}, then press {>}.L “www.panasonic.com/support”will be displayed.3 Press {OFF}.