Troubleshooting
Headset
Issue Resolutions
I can’t hear a dial tone in the 
headset.
● Make sure your headset is charged.
● Make sure your headset is paired to base. See Pair 
headset to base on page 8.
● Adjust the configuration switch (A--F) on the bottom of the 
base until a dial tone is heard. The default A works for 
most phones.
Use configuration D for Cisco phones. Cisco phones 
connected with EHS cable use configuration A.
● Make sure your desk phone is connected correctly to your 
base. See Desk phone setup details on page 1.
● If your base is connected to your desk phone's dedicated 
headset   port, press the desk phone's headset button to 
hear a dial tone.
● If your base is connected to your desk phone's dedicated 
headset   port, press the desk phone's headset button 
and base's desk phone 
 button to hear a dial tone.
● If your base is connected to your handset port, manually 
remove the handset to hear a dial tone (if you do not have 
an EHS cable or HL10 lifter).
● Make sure your HL10 lifter is lifting the handset high 
enough to operate the hookswitch; set to a higher setting 
if necessary.
● Adjust the headset's listening volume. See Adjust volume 
on page 14.
● If the volume is still too low, adjust the desk phone 
listening volume on the base. See Adjust volume on page 
14.
Can I connect my headset to a 
mobile phone and the base at the 
same time?
Yes, your headset remembers up to 8 devices, but connect to 
up to 2 devices at a time. That includes your base.
I hear static. ● Make sure there is at least 12 inches between your base 
and your computer, and 6 inches between your base and 
your telephone. If adjusting the distance doesn’t help, your 
headset is going out of range, move closer to the base. 
See Position Your Base on page 3
20 Chapter 8  Troubleshooting