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9
Connect and configure your desk phone
There are three set-up options for connecting the CS510A/CS520A to your desk phone. Select
one of the following and continue.
• Desk phone (standard)
• Desk phone + HL10 lifter (sold separately)
• Desk phone + EHS cable (sold separately)
NOTE If you will be using a standard desk phone set-up or a desk phone with an HL10 lifter, continue
below. If you will be using the desk phone with an EHS cable, refer to Desk phone plus EHS cable
section in this guide. For further installation information, refer to the EHS Getting Started guide that
came with your EHS cable or at plantronics.com/accessories.
Desk phone (standard)
1 Connect one end of the telephone interface cable to the back of the base.
2 Disconnect the handset coil cord from the desk phone and re-connect it to the telephone
interface cable junction box.
3 Connect the remaining end of the telephone interface cable into the open handset port on the
desk phone.
NOTE Your desk phone handset will continue to work; it’s just hooked up differently.
USE
NOTE If your phone has a built-in headset port, you should only use the headset port if you will not
be using the HL10 lifter. In this configuration, you must press both the headset button on your phone
and the call control button on the headset to answer or end calls.