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Management:Net work administrators.
Display:Video and color (B/W) display;6 figures and 8 figures LED digital display; incoming call, alarm, registering and referring records.
Incoming call:Showing the extensions, room numbers, building numbers.
Calling:CAlling extensions, showing the images in front of the outdoor phone.
Alarm:Burglar alarm, help, fire alarm, connecting with the computer system.
Intercommunication:Intercommunication with outdoor phones and indoor phones, releasing the outdoors.
Patrolling the whole system automatically