Out of the box the Plantronics CS540 (C054) wireless headset is 100% compatible with your Yealink desk phones, but requires the EHS36 adapter in order to enable the feature to answer/end calls when away from your desk.
Step 1Plug the big end of your Plantronics C054 phone cord into the back of the Plantronics charging base.
Step 2Plug the other end of the Plantronics phone cord into the HEADSET PORT of your Yealink desk phone.
Step 3Included with the Yealink EHS36 is an RJ12 cord. Plug one end into the EHS36 adapter.
Step 4Connect the other end of the RJ12 cord into the back of your Yealink phone labeled EXT or EHS.
Step 5Also included with your Yealink EHS36 is a 3.5mm cable. Plug one end into the EHS36 box.
Plug the other end of the 3.5mm adapter into the back of the C054 charging base. That's it! Your now able to answer/end calls up to 350 feet away from your Yealink desk phone, from your Plantronics CS540 earpiece. Simply press the silver button on the earpiece and this will answer/end your calls. For any further assistance with setup, feel free to contact us today.
*For other helpful setup guides visit the Plantronics CS540 headset setup resource center*