Making/Answering Calls20 For assistance, please visit http://www.panasonic.com/phonehelpMuteWhile mute is turned on, you can hear theother party, but the other party cannot hearyou.To mute your voice, press {MUTE}.L To return to the conversation, press{MUTE} or {C}.FLASH buttonPressing {Flash} allows you to use specialfeatures of your host PBX such astransferring an extension call, or accessingoptional telephone services such as CallWaiting.Note:L To change the flash time, see page 31.L {Flash} is a soft key visible on thehandset display during a call.For Call Waiting service usersTo use Call Waiting, you must subscribe toyour telephone company’s Call Waitingservice.This feature allows you to receive callswhile you are already talking on the phone.If you receive a call while on the phone,you will hear a Call Waiting tone. Pleasecontact your telephone company fordetails and availability of this service inyour area.Press {Flash} to answer the 2nd call.L To switch between calls, press {Flash}.Temporary tone dialing (for rotary/pulse service users)You can temporarily switch the dialingmode to tone when you need to accesstouch tone services (for example,answering services, telephone bankingservices, etc.).Press {*} (TONE) before entering accessnumbers which require tone dialing.Handset clarity boosterThis feature can improve sound claritywhen the handset is used in an area wherethere may be interference. During anoutside call, this feature is turned onautomatically when necessary. You canalso turn this feature on or off manually.1 Press {MENU} during an outside call.2 Press {2} to select “Booster on” or“Booster off”.Note:L When this feature is turned off manuallyduring a call, it does not turn on againautomatically during the same call.L While this feature is turned on, thebattery operating time is shortened(page 13).