Convenient service-Get this headset adaptor then you can use your favorite computer analog headphone to chat on telephone,Provide convenient for the operator.
Connector A: 2* 3.5mm female ,Connector B: RJ9; Length:25cm.
Matters needing attention-NOT work with Avaya 9620C, Avaya 9608, Cisco 7942 ,Avaya 621xx series.There are 2 slots - one for mic works and one for headset works.
Specs: This amazing adaptor converts the standard phone headset 3.5mm plug to an RJ9, RJ10, or RJ22 headset plug, allowing you to use your favorite 3.5mm headset with your office IP phone.
PC Stereo Headset Dual 3.5mm to RJ Plug for most Phones as below Description compatible list.

Technical Details

Product Details

Package Dimensions
Width : 3.54 inch
Height : 0.39 inch
Length : 5.12 inch

Shipping Weight: 0.8 ounce (View shipping rates and policies)

ASIN : B077BTJR2W