Lifter or EHS cable for Plantronics headset?

I have a Plantronics C052 and Allworx model 9224 can I use EHS cable or do i need headset lifter

With any Plantronics wireless desk phone headset the HL10 handset lifter is needed to answer/end calls away from the phone on the Allworx 9224. Below is a link to the HL10 handset lifter and a video that shows how to set it up.

Plantronics HL10 Handset Lifter

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