Feature Manual References
1.3.19 COS (Class of Service)
Operating Manual References
1.3.20 Door Open
1.4.11 Doorphone Call
A visitor can use a doorphone to call its preprogrammed destination. Extension users can call a doorphone.
KX-TDA50: An optional doorphone and a DPH card
KX-TDA100/KX-TDA200/KX-TDA600: An optional doorphone, the OPB card and DPH card
The destination of doorphone calls can be assigned to each doorphone port for each time mode. The
Time Table is determined by the tenant number assigned to each doorphone port. (→ 1.17.5 Time
The following destinations cannot be the destination for doorphone calls:
Floating Extension no. for SVM
Analog/ISDN Remote Maintenance
Class of Service (COS) programming determines the doorphone ports that are able to make an
outgoing CO line call.
Internal Call Block determines which extensions can call a doorphone. (→ 1.9.14 Internal Call Block)
If an incoming doorphone call is not answered within a preprogrammed time period, ringing stops and
the call is canceled.
The duration of doorphone calls can be restricted by a system timer. If the timer expires, the call will be
While engaged on a doorphone call, an extension user can unlock the door to let the visitor in. (→
1.4.10 Door Open)
A doorphone number can be referenced for each doorphone port.
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