Jabra 920 User Manual

14

Jabra PrO 920

4.  CONFIGURING THE DESK PHONE AUDIO

Due to the large range of desk phone brands/models available, a clear dial tone must be set before first-time use 

of the Jabra PRO 920. setting the clear dial tone will enable the Jabra PRO 920 to function correctly with your 

specific desk phone. additionally it is also important to set the microphone volume for optimal sound quality.

4.1  SET A CLEAR DIAL TONE

1.  Put on the headset.
2.  Press the headset button on the desk phone, or lift 

the desk phone handset.

3.  Locate the clear dial tone switch on the back of 

the Jabra PRO 920 base, as illustrated, and while 

listening in the headset for a clear dial tone, rotate 

the switch from a to G. 

4.  Determine the best switch position. the dial tone 

should be strong, clear and undistorted.

5.  When the clear dial tone is set, press the headset 

button on the desk phone, or return the desk 

phone handset to the receiver.

CLICk

4.2  SET THE mICROPHONE VOLUmE

1.  Put on the headset.
2.  Get a dial tone by pressing the headset button 

on the desk phone, or by lifting the desk phone 

handset.

3.  Make a test call. Call a friend or colleague to test 

your speaking volume. ensure the listener does not 

adjust their own volume.

4.  adjust the microphone volume using the 

microphone + / - volume buttons, as illustrated, if 

your speaking volume is too loud or too quiet for 

the listener. 

5.  When the microphone volume is set, end the call.

note: to reset the microphone volume to the factory 

default setting, make a call and then press and hold 

both microphone + / - volume buttons until a tone is 

played, and then release the volume buttons.