Avaya T3 (IP) Compact - Manual (Page 104)

The DSS Module
104
Add-on equipment*
Dialling with the DSS module
Lift the handset.
Press the DSS key for the desired subscriber.
The LED indicates whether the connection is free or busy.
i
Note
• Instead of lifting the handset to start with, you can also press the DSS key for the
desired subscriber first and then lift the handset (dialling with handset on-hook).
Connection LED
Free Off
Call Flashing slowly
External call Flashing quickly
Busy On