Plantronics APP-51 Electronic Hookswitch (EHS) Cable for Polycom Phones

Get wireless call control for your Polycom desk phone with the Plantronics APP-51 EHS cable (Part# 38439-11 / HP 85Q60AA). This electronic hookswitch adapter enables one-touch remote answer and end calls from your Plantronics wireless headset—no HL10 handset lifter required. The APP-51 replaces the older APS-50 cable and adds compatibility with the Plantronics Online Indicator accessory.

Key Features

• Remote call answer/end and ring alerts via your wireless headset
• Eliminates the need for an HL10 handset lifter
• Replaces the discontinued APS-50 EHS cable
• Compatible with Plantronics Online Indicator accessory

Compatible Headsets

• CS500 Series: CS510, CS520, CS530, CS540
• Savi Series: W710, W720, W730, W740, W745
• Savi Office: WO100, WO200, WO300, WO350
• MDA200 Audio Switcher

Compatible Phones

• Polycom SoundPoint IP: 320, 321, 330, 331, 335, 430, 450, 550, 560, 650, 670
• Polycom VVX: 300, 310, 400, 410, 411, 450, 500, 600, 1500
• Digium: D40, D45, D50, D60, D62, D65, D70

Why Buy from Reef Telecom?

• Industry-leading 10-year warranty on refurbished equipment
• Free shipping on orders over $300
• Fully tested and certified refurbished
• Expert telecom support team

Note: Polycom phones may require headset port activation and EHS configuration. Set the phone to Analog/Plantronics headset mode for proper operation.

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.