Step 1(#612) Assign contact closure 1 or 2 then the ext. that you have the contact closure device on.
Step 2(#613) Determine how you want to use this device.
Enter 1 or 2 then assign (1=1 sec on) (2=3 seconds on default)(3=5 seconds on) or (4=toggle)
Step 3 Determine what phone you need to switch this device, find a button with a light, press feature 00 then press the blank button and enter FEATURE 41= contact closure 1 of FEATURE 42 for contact closure 2
Let me know if this helps!
teamgcs