Avaya one-X 9611G - Setting Go To Phone Screen on Answer; Displaying Call Timers

9600 Series IP Deskphone Installation
18 9600 Series H.323 Deskphones Release 6.0 Installation and Maintenance Guide
Figure 2: Connection Jacks on a 9621G or 9641G Deskphone
Note that the 9621G does not support a button module.