Panasonic KX-TDA30 Features Manual page 162

1.16 Optional Device Features
Conditions
WARNING
When you enable the Trunk-to-Trunk Call feature of DISA, and a third party discovers the personal
identification number (PIN) (verified code PIN/extension PIN) of the PBX, there will be a risk that they
will make fraudulent phone calls using the telephone line, and the cost will be charged to your own
account. In order to avoid this problem, we strongly recommend the following points:
a)
Carefully maintain the secrecy of the PIN.
b)
Specify a complicated PIN as long and random as you can make it.
c)
Change the PIN frequently.
• Hardware Requirement:
KX-TDA30: The MSG card
KX-TDA100/KX-TDA200: The OPB card and MSG card
• DISA Delayed Answer Time
It is possible to set the Delayed Answer time (→ DISA Delayed Answer Time [209]) so that the caller
will hear a ringback tone within a preprogrammed time period first before hearing an outgoing message
(OGM).
• DISA Mute Time
It is possible to set the Mute time until the outgoing message (OGM) plays and the PBX starts to receive
the DTMF signalling after the caller reaches the DISA line.
• Trunk-to-Trunk Call Duration
If a call between two outside parties is established, the call duration can be restricted by a system timer.
(→ 1.10.8 Trunk Call Limitation) If the timer expires, the line will be disconnected unless the originating
caller retries by pressing " " or extends the time by sending any DTMF signalling. The caller can
prolong the call duration within the preprogrammed time period (→ DISA Trunk-to-Trunk Call Prolong
Time [210]) and preprogramming number of times.
• Tone Detection
The following three types of tone detection can be enabled for each trunk group to disconnect a trunk-
to-trunk call via DISA.
– Silence Detection (→ DISA Silence Detection [475])
– Continuous Signal Detection (→ DISA Continuous Signal Detection [476])
– Cyclic Signal Detection (→ DISA Cyclic Signal Detection [477])
• Call Retry
While hearing a ringback, reorder, or busy tone, retrying the call is possible by pressing " ". During a
trunk-to-trunk conversation, the result of pressing " " is programmable: retry mode or DTMF mode.
• DISA Reorder Tone Duration
It is possible to set the DISA Reorder Tone Duration time. Reorder tone will be sent to the caller for a
preprogrammed time period. When the timer expires the call will be disconnected. Retrying the call is
possible by pressing " " during the DISA Reorder Tone Duration time.
• Call Deny
Extensions can deny DISA calls on a COS basis.
• Verified Code PIN Lock/Extension PIN Lock
If the wrong PIN is entered three times, the line will be disconnected. If the wrong PIN is entered a
preprogrammed number of times successively, that extension or verified code will become locked, and
even entering the correct PIN will not unlock it. Only an extension assigned as the manager can unlock
it. In this case, the PIN will be unlocked and cleared.
• Each outgoing message (OGM) call have a name through system programming (→ Outgoing Message
(OGM) Name [731]) for programming reference.
162 Feature Guide