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Questions? For fast, efficient Technical Support call: 800-544-4660 Ext. 5538
I can’t hear a dial tone at the headset
• Make sure your headset is charged.
• Press the Call Control Button on your headset.
• Make sure the lifter is lifting the handset high
enough to operate the hookswitch; set to a higher
setting if necessary.
• Adjust the Confi guration Dial on the left side of the
base. Align the “1” on the dial with the ridges to the
right side of the dial. If there is no dial tone for setting
“1” try the other dial settings. Adjust the Listen Vol-
ume Button on the headset. If the volume is still too
low, select another setting on the Listening Volume
Switch on the headset base.
I hear static
• Make sure there is at least 12” between your CS55
base and your computer, and 6” between your base
and your telephone. If adjusting the distance doesn’t
help, your base settings may need adjusting.
• Your system may need to be reset. See the System
Reset procedure on page 14 (also in the User Guide
available online at www.plantronics.com/CS55).
The sound is distorted or I hear an echo in the headset.
• Reduce speaking volume by changing the Speaking
Volume Major Adjustment Switch.
• Point microphone towards your chin.
• Listening volume may be too high on phone. If your
phone has a handset volume control, lower this until
the distortion disappears.
• If the distortion is still present, lower the volume us-
ing the Listen Volume Button on the headset.
If the distortion persists, select another Listening
Volume Switch setting on the headset base.
• Make sure there is 12” distance between your CS55
base and your computer, and 6” between your base
and your telephone.
• System needs to be reset. Perform system reset as
described on page 14.
People I talk to can hear a buzz in the background.
• Move the base further away from your phone.
• Power adapter is plugged into a power strip.
Plug the power adapter into the wall directly.
Talk time performance is signi cantly degraded even
after a full recharge.
• Battery is wearing out. Call Plantronics at (800)
544-4660 Ext. 5538 for factory service information.
The Handset lifter is installed but does not lift the
handset.
• Be sure the handset lifter power cord is fi rmly pushed
into the handset lifter jack on the base.
My handset lifter operates every time I remove or
replace my headset in the base.
• IntelliStand is enabled. To disable this feature, move
the IntelliStand switch to the
UP position. See page 12.
The call is dropped. (Talk indicator in the headset and
base will not be illuminated.).
• Headset lost subscription. Try to reset the system. See
below if this does not work. Try the re-subscription
procedure on page 14 (also in the User Guide available
online at www.plantronics.com/CS55).
Additional Information and Support
Additional Information
Additional Information including an
Interactive Quick Start Guide, Product
Information and Accessories including the
HL10 Automatic Handset Lifter and Online
Indicator Light can be found at www.plantronics.
com/CS55.
Telephone Support
Telephone Tech Support at
800-544-4660 Ext. 5538
(Sunday 3:00
PM to Friday 5:00 PM, PST).
Online Technical Support
www.plantronics.com/support
Knowledge Base FAQs
Live Chat with a Support Technician
Email Support
Product Compatibility Guide
Product Manuals
(including all available language versions)
Service
Product Registration
TROUBLESHOOTING AND COMMON QUESTIONS