Poly APV-66 Electronic Hook Switch (EHS) Cable — Remote Call Control for Avaya Desk Phones

The Poly (formerly Plantronics) APV-66 EHS cable enables seamless remote call control between your Poly wireless headset and compatible Avaya desk phones. Answer and end calls, adjust volume, and mute your microphone directly from your headset — no handset lifter needed. Backed by Reef Telecom's industry-leading 10-year warranty and free shipping on orders over $300.

Key Features

• Electronic Hook Switch (EHS) cable for remote desk phone call control (answer/end)
• Eliminates the need for an HL10 handset lifter
• Replaces the older APV-65 cable with added On-Line Indicator (OLI) compatibility
• Easy plug-and-play installation via EU24 port on Avaya phones
• Ring alert notification directly in your headset — never miss a call

Compatible Avaya Phone Models

• Avaya 2420, 4610, 4610SW, 4620, 4620SW, 4621SW, 4622SW, 4625SW, 4630SW
• Avaya 5420, 5610, 5620, 5621

Compatible Poly Wireless Headsets

• CS500 Series (CS510, CS520, CS540)
• Savi Series (W710, W720, W730, W740, W745)
• Savi Office (WO100, WO200, WO300, WO350)
• MDA200 Audio Switcher

Part Numbers

• Poly/Plantronics: 38633-11
• HP: 85R02AA
• Reef Telecom SKU: PLAN-APV-66

Note: Not compatible with Avaya 4606 or 4612 models. If using a sidecar/expansion module with 4600 or 5400 series phones, use the APV-63 EHS cable instead. Avaya 2420 and 54XX phones require firmware 4.0 or greater.

Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.

All products include our industry-leading 10 Year Warranty backed by Reef Telecom.