Plantronics 640E Benutzerhandbuch

3

UK  troUBlEsHooting

Headset was not in discovery mode when 

mobile phone menu selections were made.

See page 10 “Pairing”. 

Incorrect menu selections were  

made on your mobile phone.

See page 10 “Bluetooth Pairing”. 

UK  MY HEaDsEt DoEs not WorK WitH MY PHonE. 

Mute is turned on.

Press both sides of the  

volume/mute button simultaneously.

UK  callErs cannot HEar ME.

The headset is not turned on.

Press the call control button for  seconds until you hear 

a beep or see the headset status indicator glow blue.

Your headset is out of range.

Move the headset closer  

to the phone or Bluetooth device.

Your headset battery is flat.

Charge your battery using the AC  

power adapter supplied, or a AAA battery charger.

The listening volume is too low.

Press the top part of the volume/mute button  

to increase the sound heard in the headset.

UK  i cannot HEar callEr/Dialling tonE. 

UK  i DiD not EntEr MY PassWorD.

Your phone did not locate the headset.

Repeat the pairing process on page 10.

Incorrect menu selections were  

made on your mobile phone.

Repeat the pairing process on page 10.