Vertical Communications SCS 8324S - Manual (Page 135)

GCA70250
Attendant Manual
August, 03 Comdial 125
When the installer assigns a DSS/BLF console to a station port, the
system recognizes it as such and automatically clears (blanks) the
console buttons so that you can store numbers at the buttons as you
need them.
ib64x
IB64X DSS/BLF Console