Trouble shooting a Plantronics-CS540 Wireless Dect Headset

Modified on Tue, 15 Apr at 2:23 PM

For the headset base:
  • There are two small knobs—one for Speaker Volume and one for Microphone Adjustment.
  • There is also a switch labeled A–G. Most phones work with setting A, but if you're not hearing a dial tone, slowly cycle through the options from A to G until a dial tone is heard.
For the Yealink phone:
  • When the phone is idle, press MenuBasic, then scroll down to Analog Headset Mode.
  • The setting should be Common. If that doesn’t work, try options 23, and 4 one at a time.




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