Matrix ETERNITY NE - The Process

588 Matrix ETERNITY NE System Manual
The Process
• When a visitor arrives at the entrance and presses the door phone button, the system senses the doorbell
and places the call on the phone programmed as the landing destination. The destination phone may be
extension(s) of the ETERNITY NE or an external fixed line or mobile number.
When the landing destination for the Door Phone Call is an extension of ETERNITY NE,
• The system plays a distinct Ring Type on the extension to indicate to the extension user(s) that it is a door
phone call. The Ring Type is programmable; by default Triple Ring is set as ring type.
• The visitor is played Ring Back Tone while the destination extension rings for the duration configured as
‘Ring Door Phone call for’ parameter in the Door Phone settings (default: 30 seconds)
48
.
If the destination extension does not answer the call within this time period, the Door Phone call is dropped
and the Door Phone goes idle.
• When the destination extension answers the call, the Door Phone circuit is activated and two-way speech
is established between the visitor and the extension user.
• The extension user ascertains identity of the visitor.
• The extension user may now either physically appear at the door to open it, or dial the Open Door Lock
Code (default: 1173) from the current extension.
• When a Door Lock is used to open the door,
• the extension user puts the call on hold, music-on-hold is played to the visitor.
• the extension user dials the Feature Access Code to 'Open the Door' (default: 1173).
• the Door Lock is opened for the duration of the Timer 'Open Door for’ (default: 5 seconds)
49,50
,
configured in the Door Phone settings.
• as soon as this Access Code is dialed, speech is reestablished with the visitor.
• the extension user invites the visitor to enter the building.
• The Door Lock closes on the expiry of the ‘Open Door for’ timer.
• The Door Phone goes idle only when the extension user goes ON-Hook.
• The extension user can open the Door Lock also by dialing the feature command to operate the DOP.
For this, however, the extension must have the facility ‘DOP Turn ON/Turn OFF' in its “Class of Service
(COS)”. Refer the topic “Digital Output Port (DOP)” for operation instructions.
• It is possible for the any extension of the ETERNITY NE to establish speech with the Door Phone even
when it is idle, by dialing the unique access code assigned to the Door Phone.
When the landing destination for the Door Phone Call is an external number,
• When the visitor presses the Door Phone button, the ETERNITY NE makes a call to the pre-programmed
external number, which may be a fixed line or a mobile number.
48. The ‘Ring Door Phone Call For’ timer determines the time for which the landing destination shall ring for the door phone call. This
Timer is necessary because often visitors may press the door phone switch as they would do a door bell, for one or two seconds
only, whereas the call must remain present for a longer period of time for it to be answered.
49. This is the time for which the door will remain open.
50. An error tone will be played to the extension user for the duration of the error tone timer, if a DOP has not been assigned to the
Door phone port.