HIS Direct Cable For H-Series Headsets (Poly 72442-41 or HP 783S3AA)
Commonly used with compatible desk phones
Cord stretches to give approximately 10 feet of length
Quick Disconnect and RJ9 connections
 
HIS Direct Connect Cable – Poly 72442-41 or HP 783S3AA
The Poly (formerly Plantronics) HIS Direct Cable  part # Poly 72442-41 or HP 783S3AA for H-Series Headsets is compatible with many of the following:
Avaya 9600 Series
9601 / 9608
9610 / 9611 / 9611G
9620 / 9620C / 9620L / 9621
9630
9640 / 9640G / 9641
9650 / 9650C
9670
J100 Series
J129
J139
J169
J179
 
About Direct Connect QD Cables
Poly 72442-41 or HIS direct cable for H-Series headsets enables you to connect your H-Series headset directly to your desk phone – no amplifier or audio processor required. In order to be able to use a direct connect cable, your phone must be headset ready.
Tech Tip: Avaya headset compatibility guide
 
Understanding Direct Connect Cables vs. Amplifiers:
When using any H-series headset, a Direct Connect Cable or amplifier is required to plug in between your headset and phone.  Using a Direct Connect Cable will save you money versus an amplifier, but an amplifier will provide optimum sound quality and volume controls.
 
Direct Connect Cable:
Less expensive
Easy to install into headset port
Takes up virtually no desk space
Limited to use with compatible phones only (Your future phone may not be compatible and require an amplifier)
 
Amplifier:(Poly MDA524 QD)
Compatible with most phones
Battery or AC powered to provide optimal sound quality
Speaker volume adjustment
Microphone volume adjustment (Key point that Direct Connect Cable doesn’t have)
Lifting handset with each call may be required, depending on your phone
 
Poly HIS Direct Connect Cable Details
Poly SKU: 72442-41
HP SKU: 783S3AA
UPC: 197029633026