Matrix ETERNITY NE - Door Phone; The Pre-Requisites

Matrix ETERNITY NE System Manual 587
Door Phone
What's this?
A Door Phone is typically used for monitoring an entrance door. It is installed in place of the Doorbell.
The door phone is similar to any ordinary phone; except it does not have a hook-switch or a dial pad. Usually, it is a
weather tight box, equipped with a button like a doorbell, which visitors press.
When visitors press the Door Phone Call Button, the phone programmed to receive the call (landing destination)
rings. The user of the called phone can answer the door phone call by simply lifting the handset and talk to the
visitor at the door. The user of the called phone can have the door opened for the visitor by either physically
appearing at the door or operating a door lock release device.
The Door Phone feature of the ETERNITY NE allows users to operate the door phone from a remote location (off-
premises) by having their calls routed to an external number.
The Door Phone feature of the ETERNITY NE is very convenient to have at:
• Delivery entrances: It is not necessary to have company personnel monitor delivery entrances. They can
just answer the Door Phone instead.
• Clinics, Pharmacies, Apothecary, Druggist/Chemist Medicine Dispensaries: Where patients need to
be attended to and medicines must be dispensed round the clock to patients/prescription holders, doctors/
pharmacists can use the door phone feature to let in patients/prescription holders, even during non-
working hours, and when they are absent.
It is also possible for the doctor/pharmacist to have calls of the door phone landed on their mobile number
or any other fixed line external number, and open their clinic/pharmacy from their current (remote) location
to let the patient in.
• Residences and Apartment entrances: The identity of the visitors can be screened before letting them
in. The occupants of the house can greet their guests/relatives and let them enter the house also in their
absence by answering the door phone from their current (remote) location and opening the door for the
guests.
Matrix does not supply Door Phones. Any standard 4-wire Door Phone can be connected to the door
phone port of ETERNITY NE.
How it works
The Pre-requisites
• A four-wire Door Phone connected to the Door Phone Port of the ETERNITY NE.
• A Door Lock Release device connected to the Digital Output Port (DOP) of the ETERNITY NE, if a Door
Lock Release is to be used in conjunction with the Door Phone.