Plantronics APC-4 Headset Electronic Hook Switch Control Adapter (37978-01)
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Free Shipping on Orders of $500+ *
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Elevate your headset experience with the Plantronics APC-4 Headset Electronic Hook Switch Control Adapter (37978-01). Seamlessly integrate your headset with electronic hook switch functionality, enhancing your communication efficiency. Compatible with a range of systems, this adapter ensures smooth call management with the touch of a button.
Features
- Connects your Cisco IP phone to Plantronics CS series wireless headsets
- Provides remote one-touch answer/end call control for your wireless headset
- Eliminates the need for an HL-10 handset lifter
Wireless Headset Compatibility
- Plantronics CS50, CS55, CS70, CS70N, CS351N, CS361N
Cisco IP Phone Compatibility
- Cisco 7942G, 7945G, 7962G, 7965G, 7975G
Included
- Plantronics APC-4 Headset Electronic Hook Switch Control Adapter (37978-01)

New Product
These products are brand new and have never been used. They arrive in the original manufacturer packaging in pristine, factory-fresh condition.
No-hassle returns. Zero restocking fees.
Wrong item? Changed your mind? Don't need it anymore? We've got you covered.
30-Day Returns
- No restocking fees, ever
- Refund or store credit — your choice
- 30 days from invoice date
- Return in original condition, securely packed
Fast Shipping
- Ships within 2 business days*
- Rush & Saturday delivery available — call us
- Free ground shipping available (continental US orders over $500)
- Overnight delivery available
1-Year Warranty
- Covers defects & functional failures
- Normal business use, from date of purchase
- Batteries: 90 days (consumable)
- Excludes misuse, modification, mishandling
Need help finding the right product?
Our team is ready with expert support before and after your purchase.
*Shipping and delivery on business days. Purchaser is responsible for return shipping costs and insurance. Free/fixed shipping offers exclude palletized items — call for freight rates.






















































