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Poly

Plantronics APC-4 EHS Adapter (Cisco)

Plantronics APC-4 EHS Adapter (Cisco)

Certified Renewed · 1-Year Warranty

$12.50 USD
$12.50 USD
Sale Sold out
Temporarily out of stock

This certified renewed unit is between batches. Leave your email and we'll let you know the moment it's back — usually within days.

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  • Free shipping
  • 30-day returns
  • 1-year warranty

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Shipping & Returns

For an even easier and more trusted shopping experience, you can checkout on our website with your existing Amazon account.

  • One familiar login to identify and purchase
  • Personal information security
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  • You're covered with Amazons A-Z guarantee

Shipping is always FREE

Orders placed before 3pm PST will ship that same day from California and will arrive within 2-5 business days. If you need faster shipping, at checkout there's expedited shipping options available. 

Returns are easy and free!

You have 30 days from the date of purchase to return your order for a full refund. Please follow the quick steps below to submit a return.

  1. Email your order number to info@renewedheadsets.com and please provide reason for return.
  2. Once return is approved, you'll receive an email with a pre-paid shipping label to return your order for a full refund
  3. Refunds take 2-5 business days to be issued from the day the return is received in our warehouse

*ALL RETURNS must have an RMA number on the box or the package will be refused and the return process will be delayed.

 

Warranty

Warranty replacements are fast and free, the way it should be!

Renewed Headsets covers you with a 1 year advanced replacement warranty for peace of mind. To get a warranty replacement, please follow the quick steps below.

  1. Email info@renewedheadsets.com with your order number and description of the issue.
  2. A replacement will ship that same day and you'll be emailed a pre-paid shipping label to send the defective headset back

*Please use the shipping label provided by Renewed Headsets or the package could get lost.

 *Warranty, service and support is covered from Renewed Headsets, NOT manufacturer.

View full details
Certified Renewed Grade A Cosmetics 1-Year Warranty Professionally Restored
How we refurbish

About this product

The Plantronics APC-4 is an electronic hook switch (EHS) adapter for Cisco phones (part number 37978-01). It links a compatible Plantronics wireless headset system to a supported desk phone so you can answer and end calls remotely, without a mechanical lifter. This is an accessory only: it is not a headset and includes no microphone, battery, or audio components. Confirm compatibility with your specific phone and headset model before ordering.

Key features

  • Electronic hook switch (EHS) adapter for Cisco phones
  • Enables remote call answer/end with a compatible wireless headset system
  • Accessory only, no headset or audio components included
  • Manufacturer part number 37978-01

Certified Renewed

Every unit is electronically tested for correct function, professionally cleaned, and fitted with replacement parts wherever needed. We hold cosmetics to a Grade A standard, and each item ships backed by our 1-year advanced-replacement warranty plus lifetime support.

Certified Renewed · Inspection report

Every headset earns the seal

Every headset runs the same five checks before it earns the seal — the same language on the box, here, and across the site.

Report ID AP-B004GIHEI8 · Passed

Electronically TestedAudio · mic · range · battery
Professionally Cleaned & SanitizedFresh ear cushions fitted
Parts & BatteryNew battery & parts where needed
Grade A CosmeticsPresentation-ready condition
1-Year Warranty + Lifetime SupportAdvanced replacement included

Specifications

BrandPoly
Model37978-01
ConditionCertified Renewed — Grade A

Questions

Frequently asked

What does the APC-4 do?
It is an EHS adapter for Cisco phones that lets a compatible Plantronics wireless headset system answer and end calls electronically, without a mechanical lifter.
Is this a headset?
No. It is an accessory adapter only and includes no headset, microphone, battery, or audio components.
Will it work with my phone?
It is designed for compatible Cisco phones. Confirm your specific phone and headset models are supported before ordering.
What warranty is included?
It includes our 1-year advanced-replacement warranty and lifetime support, and like all our items it is electronically tested before resale.