1.16 Optional Device Features
1.16 Optional Device Features
1.16.1 Doorphone Call
Description
A visitor using a doorphone will call a preprogrammed destination (extension or outside party). Extension users can call a doorphone.
Conditions
•Hardware Requirement:
•Each doorphone port must be assigned to one tenant. The Time Table (day/lunch/break/ night) of the tenant applies. ( 
2.2.4 Time Service)
•Call Destination
The incoming doorphone call destination(s) can be assigned for each time mode (day/ lunch/break/night) for each doorphone port ( 
Doorphone Call Destination [720]). Destinations can be selected. ( 
1.1.2.1 Internal Call
•COS programming determines the doorphone ports that are able to make an outgoing trunk call.
•Internal Call Block determines which extensions can call a doorphone. ( 
1.1.2.2 Internal Call Block)
•Ring Duration
If an incoming call is not answered within a preprogrammed time period, ringing stops and the call is cancelled.
•Call Duration
The call duration can be restricted by a system timer. If the timer expires, the call will be disconnected.
•Door Open
While engaged on a doorphone call, the extension user can unlock the door to let the visitor in. ( 
1.16.2 Door Open)
•A doorphone number can be referenced for each doorphone port ( 
Doorphone Number Reference [729]).
•KX-TDA15/KX-TDA30 only
Doorphones 1 and 2 (or 3 and 4) cannot make a call simultaneously. If a visitor presses the doorphone button while the other doorphone is engaged in a call, he will hear no tone. Doorphones 1 and 2 (or 3 and 4) cannot receive a call simultaneously. If an extension user calls a doorphone while the other doorphone is engaged in a call, he will hear a busy tone.
Installation Manual References
Installation Manual
2.6.1OPB3 Card
2.6.2DPH4 Card
2.6.3DPH2 Card
