Door phone system

Door phone intercom system Features and functions:
431 indoor phones for each door station at most
Anti-vandal and waterproof door station is optional
Door station with IR LED ensures clear picture even at night
Digital door station or direct-call station to be optional
Keyboard with the night illumination to operate easily at night
Talk and monitor with door station, unlock remotely and by password each user has its own password
Up to 2 extension indoor phones for each indoor phone at most
Video and audio indoor phones are compatible
Ding-dong or chord music to be optional
Accepted to set mute for indoor phone
Indoor phone and the guard unit can call and intercom with each other
Unlock by card to be optional
Accepted to connect with second confirmed door station
Network or non-network system is optional
Intercom with any other apartments on the same network (network system only)
The indoor phones and the guard unit can call and intercom with each other
Optional function:
The message broadcasting and image memory to be optional
Security indoor phone is accepted to connect with multi sensor
Control elevator by indoor phone and monitor elevator by guard guard unit
Message broadcasting and image memory to be optional

Door phone system Al IV and V-17;CE and ROSH,color or B/W display,,IR LED,Card reader.anti-vandal and waterproof.