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Plantronics Electronic Hook Switch (EHS) Cord Compatibility Guide for Polycom

Polycom SoundPoint IP 320, 321, 330, 331, 335, 430, 450, 550, 560, 650, 670


Polycom VVX 150, 250, 300, 301, 310, 311, 350, 400, 401, 410, 411, 450, 500, 501, 600, 601, 1500

Poly Edge E100, E220, E320, E350, E400, E450, E500, E550

Poly CCX 400, 500, 600, 700