The Avaya 1600, 9600, and J100 Series IP Deskphone Headset Interface enables headset accessory manufacturers to design new products that interface with Avaya's J100, 9600 and 1600 Series IP deskphones via an RJ9 headset jack on the phone.

The Headset Interface documentation describes the functional and electrical behavior of the headset interface and its accessory used on Avaya IP deskphones. The documentation provides the information needed by headset accessory manufacturers to design new products for use with this interface:

• Headset Interface documentation, Issue 2 (448 KB .pdf)