Poly APC-43 EHS Cable

(6 customer reviews)


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

  • Typically used on Cisco & Panasonic phones (EHS Guide)
  • Compatible with CS500 / Savi / Voyager series wireless headsets
  • Allows for remote answer/hang-up
  • Receive call alerts when away from your desk
  • Automates taking of calls
  • See picture for setup/installation
  • Same Day Shipping On In Stock Items
  • Warranty 1-Year
  • Non-Returnable

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.

Plantronics APC-43 EHS Cable 38350-13

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

Cisco APC 43 Headset EHS Guide

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.

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

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

Additional information for the Poly APC-43 EHS Cable


Same Day Shipping On In Stock Items








38350-13 (Poly), 85Q55AA (HP)


0017229154605 (Poly), 197497572315 (HP)

6 reviews for Poly APC-43 EHS Cable | Poly 38350-13 or HP 85Q55AA

  1. Tom

    Great product.

  2. GadgetMan911

    Needed this cable to make a headset work on our new Cisco phone system

  3. DB

    No configuration necessary. Truly plug and play.

  4. Kate

    Bought this device so that the phone could be answered while away from the desk. So, far have successfully tested this device’s capability to answer 100 feet away. It’s been GREAT even without a straight shot to the main console or base, it has allowed me to answer calls without a problem. Seems to function very reliably and am very glad that this was purchased for those circumstances when one is called away from the desk.

  5. Robin

    Adding the ability to not have to have a “lifter” for the headset allows for no extra parts to break down. Will add flexibility to my job.

  6. Ryan

    Easy setup fast shipping, no complaints.

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