• EHS is only possible on certain telephone systems supporting EHS. There are several unique EHS cables fit specific phones.
• Do not buy this EHS if your phone model not match. Buy a Handset Lifter instead of a EHS cable.
• Some phone need to be setup for using EHS cable. Check your phone manual as well.
Polycom Adapter for following models
(compare to Plantronics APP-5, Jabra 14201-17)
IP 320, 321, 330, 331, 335
430, 450, 550, 560, 650, 670
VVX 300, 310, 400, 410, 500, 600, 1500
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