Plantronics CS55 Series User Manual

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 signifi 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 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 Tech Support at 

800-544-4660 Ext. 5538

 

(Sunday 3:00 

PM

 to Friday 5:00 

PM

, PST).

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