Panasonic KX-TD500 System Reference Manual page 529

7.00 Doorphone
Description
Up to four doorphones can be connected to the
system. This provides conversations between
extensions and doorphones.
Any extension user can call the doorphones
within the same tenant on the DN button by
dialing the feature number for "Doorphone Call
(1~4)." It is possible to direct calls from
doorphones to specified extensions, pickup
groups or Attendant Consoles in "Extension-
Doorphone", Doorphone Call Assignment.
If Tenant Service is employed, the affiliation of
each doorphone can be determined by the
system programming in "Extension- Doorphone",
Tenant.
Set the duration of the door opener in "Extension-
Doorphone", Open Duration. When Open
Duration is set to "0", the door opener is
unavailable.
Opening the door is available to Attendant
Consoles and the extensions which are able to
receive calls from doorphones: the extensions
belonging to pickup groups that are able to
receive calls from doorphones. They can open
the door by dialing "5" during conversation with
the doorphone.
Programming
System Programming
"System-Numbering Plan (3/11)",
Doorphone Call (1-4)
"Extension-Doorphone"
Reference
VT Dumb
11-C-11.00
10-D-6.03
11-C-29.00
10-G-3.00
4-G-13
Conditions
Only conversations are available for the door-
phone call. The other functions such as Hold,
Transfer are all ineffective.
When a visitor presses the button on the door-
phone, ping-pong tone sounds twice, then
doorphone call ringing starts.
No answer of the call in 15 seconds cancels the
doorphone call.
Dialing "5" again while the door is open enables
the user to prolong the opening duration to the
specified duration assigned in "Extension-
Doorphone", Open Duration.
When a call from a doorphone reaches the preset
extensions, the indicators on the SDN buttons
whose owners are the receiving extensions light
in red.
When you assign the destination of a doorphone
call to attendant consoles and have two attendant
consoles, the call arrives alternately to each
attendant console.
Operation
Calling from a doorphone
1. Press the button on the
doorphone.
• You hear ping-pong tone.
• When the other party answers,
start talking to the other party.
Answering a doorphone call
When your telephone set receives a doorphone
call and rings,
1. Lift the hand set or press the SP-
PHONE button.
• Start conversation with the
caller from the doorphone.