Toshiba IPT - Manual (Page 57)

Advanced Operation
Door Phone(s)
Strata CTX DKT/IPT Telephone 10/03
43
Door Phone(s)
Door phones can be used to call phones selected in system programming. When a door
phone calls, you hear a distinctive ringing tone, one or five times (set in system
programming). You can also call a door phone and monitor the surrounding area.
LCD telephones display the door phone name ID when calls are made to or from door
phones.
The number of possible door phones varies by Strata CTX system, 01~24 maximum
for larger systems. Check with your CTX System Administrator to find out the names
and locations of your system’s door phones and record them below.
➤ To answer a door phone call
➤
When you hear a door phone call ringing, lift the handset or press the ringing
button. A door phone call sounds like chimes (high/low). The extension LED
flashes green (in-use) and you are connected to the door phone.
...or to pick up door phone calls ringing someone else’s telephone, press your
extension +
  + directory number of the ringing phone.
Door Phone Name/Location Door Phone Name/Location