The Headset is Beeping
One beep every 10 seconds is a low battery warning. Recharge the battery by returning it to the charging base for one to three hours, or until the yellow charging light stops blinking.
Two beeps is an out of range warning. Move closer to the base unit.
Three rapid beeps every 15 seconds indicates that your mute is on. Press the mute control once to turn it off. When the optional HL10 or HL1 handset lifer is connected, three rapid beeps indicates that a call is coming into the headset. Press the talk button on the headset to answer the call.