1.15 Optional Device Features
116 Feature Guide
1.15 Optional Device Features
1.15.1 Doorphone Call
Description
A visitor can use a doorphone to call its preprogrammed destination. Extension users can call a doorphone.
Conditions
• Hardware Requirement: An optional doorphone, OPB card and DPH card.
• Call Destination
The destination of doorphone calls can be assigned to each doorphone port for each time mode (→
Doorphone Call Destination [720]). The Time Table is determined by the tenant number assigned to
each doorphone port. (→ 2.2.4 Time Service)
Certain destinations cannot be the destination of doorphone calls. (→ 1.1.2.1 Internal Call Features—
OVERVIEW)
• Class of Service (COS) programming determines the doorphone ports that are able to make an
outgoing CO line call.
• Internal Call Block (→ 1.1.2.2 Internal Call Block) determines which extensions can call a doorphone.
• Ring Duration
If an incoming doorphone call is not answered within a preprogrammed time period, ringing stops and
the call is canceled.
• Call Duration
The duration of doorphone calls can be restricted by a system timer. If the timer expires, the call will be
disconnected.
• Door Open
While engaged on a doorphone call, an extension user can unlock the door to let the visitor in. (→
1.15.2 Door Open)
• A doorphone number can be referenced for each doorphone port (→ Doorphone Number Reference
[729]).
Connection References
2.6.1 OPB3 Card
2.6.2 DPH4 Card
2.9.1 Connection of Doorphones, Door Openers, External Sensors, and External Relays
Operation References
1.9.1 Doorphone/Door Opener
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