Before getting started know this.
1. The Plantronics CS540 or C054 is not a Bluetooth headset and will not connect to a mobile phone or computer via Bluetooth.
The CS540 is a DECT headset. Learn the difference between a DECT and Bluetooth headset.
2. You can connect your C054 to a computer by getting the D315 adapter. Learn how to connect your Plantronics CS540 to a computer
Out of the box your Plantronics C054 (CS540) wireless headset system comes paired to the charging base. In the case your headset comes unpaired or you hear a triple beep tone, then follow this quick guide.
Step 1Press and hold the pairing button for 5-8 seconds on the back of your C054 charging base, then release your finger. You'll see the white LED light start flashing on the front of the charging base.
Hold the volume control up button on your earpiece (in or out of the charging base is OK) until a solid white LED light appears on the headset, then release.
*Note: If you've had your headset 2 years or more and this guide doesn't help, you may need a new battery. Follow the Plantronics C054 battery replacement guide for the compatible battery and installation process.