Poly APC-43 EHS Cable

Poly APC-43 EHS Cable (Cisco/Panasonic) – Poly 38350-13 or HP 85Q55AA

The Poly (formerly Plantronics) APC-43 Electronic Hook Switch (EHS) cable part # Poly 38350-13 or HP 85Q55AA communicates electronically with your desk phone giving your wireless headset call control. The APC-43 EHS allows ring alerts to sound in your headset as well as answer and end calls remotely.

The APC-43 cable eliminates the need for a HL10 handset lifter. This cable works with Cisco and some Panasonic desk phones and may work with additional manufacturers.

Poly has several EHS adapters, each being unique to a specific telephone and wireless product.
We strongly suggest confirming compatibility with us before purchasing.

TECH TIP: APC-43 EHS Compatibility/Installation Guide

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Poly APC-43 Compatibility:

Headset Compatibility

• CS500 Series
  • Current: CS540, and all -XD variants
  • Discontinued: CS510, CS520, CS530
• Savi Series
  • Current: 7210, 7220, 7310, 7320, 8210, 8220, 8245, and all -M variants
  • Discontinued: W710, W720, W730, W730, W740, W745 and all -M variants
• Voyager Series
  • Office: 4210, 4220, 4245, 5200, and all -M variants
  • USB: When used with Voyager Office Base and all -M variants

Cisco Phone Compatibility

• 6851, 6945
• 7821, 7841, 7861
• 7942G, 7945G, 7962G, 7965G, 7975G
• 8811, 8841, 8845, 8851, 8861, 8865¹

Panasonic Phone Compatibility

• KX-UTG200B
• KX-UTG300B

NOTE 1: The Cisco 8865 is compatible with both the Poly APC-43 and APU-75. The APC-43 EHS plugs into the headset and AUX port. The APU-75 plugs into the USB port on the phone.

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Cisco Electronic Hookswitch Setup:

Software Requirements

To use the Poly APC-43 EHS cable, the Cisco server must be running Cisco CallManager System Version 4.1(3)SR5x or higher.

• Verify by logging onto the CallManager with a browser. Press the detail button on the main page to display the SW version.
• The Cisco phone must be running firmware 8.3(3)x or higher.
• Press the settings button on the phone (Checkbox icon).
• Select “Model information”. The firmware revision is listed under “Load File”

Phone verification

The phone must be set for “Wireless Headset Hookswitch Control” = Enabled

• Press the settings button on the phone (Checkbox Icon). Select “Device Configuration” >> Select “Media Configuration”
• If “Wireless Headset Hookswitch Control” is ” Disabled”, follow the instructions below.

Enabling Wireless Headset Hookswitch Control for APC-43 EHS

Access the server administrator with a browser. Select Device>Phone through the drop down menus.

• Click “Find” with no selection criteria to obtain a list of all phones
• Open the desired phone. Scroll down to “Wireless Headset Hookswitch Control” Set to “Enabled”
• Click “Apply”. Wait for the dialog box to appear, then reset the phone by clicking the reset button.

Expansion Modules

If the phone is equipped with a model 7914/7915/7916 expansion module:

• The Expansion module will be plugged into the telephone AUX port.
• Connect the Poly APC-43 EHS control connection into the expansion module
• Use a 85638-01 (formerly 40287-05) adapter to extend the APC-43 EHS audio input to reach the headset jack on the phone

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Poly APC-43 EHS Specifications

• Model: APC-43
• Poly SKU: 38350-13
  • Formerly 38350-01, 38350-11, and 38350-12
  • UPC: 0017229154605
• HP SKU: 85Q55AA
  • UPC: 197497572315
• Warranty: 1 year