Panasonic KX-TAW848 Features Manual page 111

Conditions
WARNING
There is a risk that fraudulent telephone calls will be made using the CO-to-CO Line Call
feature of DISA.
The cost of such calls will be billed to the owner/renter of the PBX.
To protect the PBX from this kind of fraudulent use, we strongly recommend:
a)
Enabling DISA security (CO Line Security or All Security).
b)
Maintaining the secrecy of extension PINs and verified code PINs.
c)
Selecting PINs which are complex and random, so that the PINs may not be
easily guessed.
d)
Changing PINs regularly.
• Hardware Requirement: An MSG card.
• DISA Delayed Answer Time
It is possible to set the DISA Delayed Answer time (
so that the caller will hear a ringback tone for a preprogrammed length of time before
hearing an OGM.
• DISA Mute Time
Certain DTMF signals, such as Caller ID information, may be sent from the telephone
company when a call is first connected. Because these signals may interfere with DISA,
the PBX can be programmed to ignore DTMF signals for a specified amount of time (DISA
Mute & OGM Start Time after Answering) after a call is connected. After the DISA Mute
time passes, DTMF signals are recognized by the PBX and the OGM begins playing.
• SMDR
The following are logged by Station Message Detail Recording (SMDR) (
Message Detail Recording (SMDR)) for DISA calls:
a)
b)
c)
• Tone Detection
Three different types of tone detection can be used to disconnect a CO-to-CO line call via
DISA. Each tone detection type can be enabled or disabled for each CO line group.
– Silence Detection (
– Continuous Signal Detection (
– Cyclic Signal Detection (
• DISA Reorder Tone Time
If a caller makes an invalid selection, a reorder tone will be sent to the caller. The caller
can retry the call by pressing " ", otherwise the call will be disconnected after a
preprogrammed length of time (DISA Reorder Tone time).
• Call Deny
Each COS can be programmed to accept or deny incoming DISA calls. A DISA call will be
accepted or denied by an extension based on the COS of the extension.
• When using Walking COS or Verified Code Entry, a PIN must be entered. If the PIN is
entered incorrectly three times when using DISA, the line will be disconnected. If an
The floating extension number of the DISA OGM.
The destination of the DISA call. (Extension number for internal calls, telephone
number for CO-to-CO line calls.)
The extension number used for Walking COS through DISA, or the verified code
used for Verified Code Entry through DISA.
DISA Silence Detection [475])
DISA Delayed Answer Time [209])
DISA Continuous Signal Detection [476])
DISA Cyclic Signal Detection [477])
1.15 Optional Device Features
1.21.1 Station
Feature Guide 111