Panasonic KX-T336 System Reference Manual page 650

4.00 Doorphone Calling
Description Operation
The attendant can make
and answer a doorphone
call.
Up to four doorphones can be connected
to the
system.
During a doorphone call, dialing "5" opens the
door for a specified period.
Making a doorphone call
1. Press an idle LOOP key.
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Dial tone sounds.
Set the duration of the door opener in "Extension-
Doorphone", Open Duration. When Open
Duration is set to "0," the door opener is
unavailable.
Conditions
If tenant service is employed, the affiliation of
each doorphone can be assigned by the system
programming in "Extension-Doorphone," Tenant.
The attendant can place a call to the doorphone
within the same tenant, but cannot hold or
transfer the doorphone call.
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.
2. Dial the feature number for
"Door- phone Call (1 to 4):" then,
dial the doorphone number (1 to
4)
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After hearing dial tone, start
conversation over the door-
phone.
Opening a door
1 . Dial 5"
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The door opens for the
specified duration.
Dialing "5" again while the door is open enables
the attendant to prolong the opening duration to
the specified duration assigned in "Extension-
Doorphone", Open Duration.
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