Nokia HF-510 User Manual

Copyright © 2009 Nokia. All rights reserved.

■ Answer or reject a call

When you receive a call, you hear a ringing tone through the 
speakerphone. The caller’s number is displayed on the speakerphone if 
the cellular network supports this function. The name saved with the 
number is displayed if you have copied the name and number to the 
speakerphone. If the name and number are not available, only 

 is 

displayed.

To answer the call, press the answer/end key.

To reject the call, press the answer/end key twice.

■ Adjust volume

To increase the speakerphone volume during a call, turn the volume 
wheel right. To decrease the volume, turn the wheel left. The volume 
level is displayed on the speakerphone.

Warning: Do not hold the device near your ear when the loudspeaker is 
in use, because the volume may be extremely loud.

■ Switch a call to the connected device

To switch a call from the speakerphone to the connected device, switch 
off the speakerphone, or press and hold the answer/end key for about 2 
seconds. When the call is switched to the connected device,   is 
displayed.

To switch the call back to the speakerphone, switch on the 
speakerphone (if it is off), or press and hold the answer/end key for 
about 2 seconds.

■ Clear settings or reset

To clear the pairing settings and copied contacts from the 
speakerphone, press and hold the power key and the answer/end key (for 
over 4 seconds) until the red and green indicator lights start to alternate 
and 

 is displayed. After the settings are cleared, the speakerphone 

enters pairing mode.