Panasonic KX-TDA600 Feature Manual page 80

1.4 D
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)
Keeping passwords (verification code PINs/extension PINs) secret.
c)
Selecting complex, random PINs that cannot be easily guessed.
d)
Changing PINs regularly.
• Hardware Requirement:
KX-TDA50: An MSG2 card
KX-TDA100/KX-TDA200/KX-TDA600: An OPB card, and MSG4 card or ESVM4 card
• DISA Delayed Answer Time
It is possible to set the Delayed Answer time so that the caller will hear a ringback tone within a
preprogrammed time period first before hearing an outgoing message (OGM).
→ 2.9.4 [2-3] Timers & Counters—Dial / IRNA / Recall / Tone—Recall—Hold Recall
→ [209] DISA Delayed Answer Time
• Call Retry
While hearing a ringback, reorder, or busy tone, retrying the call is possible by pressing " ". System
programming selects whether pressing " " during a CO-to-CO line conversation returns to the DISA
top menu or sends a DTMF tone.
• 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 signaling after the caller reaches the DISA line.
→ 2.9.4 [2-3] Timers & Counters—DISA / Door / Reminder / U. Conf—DISA—Mute & OGM Start Timer
after Answering
• End of Call Detection
If a call through DISA is routed to a CO line, DISA can be used to detect the end of the call. This function
can be disabled through system programming. If disabled, DISA is released when the CO-to-CO line
connection is made.
2.12.3 [5-3-1] Voice Message—DISA System—Option 1
→ CO-CO with DISA—DISA to Public CO
→ CO-CO with DISA—DISA to Private Network
The following three types of tone detection can be enabled for each trunk group to disconnect a CO-to-
CO line call via DISA.
– Silence Detection
→ 2.10.1 [3-1-1] Trunk Group—TRG Settings—Tone Detection—DISA Tone Detection—Silence
→ [475] DISA Silence Detection
– Continuous Signal Detection
→ 2.10.1 [3-1-1] Trunk Group—TRG Settings—Tone Detection—DISA Tone Detection—
Continuous
→ [476] DISA Continuous Signal Detection
– Cyclic Signal Detection
→ 2.10.1 [3-1-1] Trunk Group—TRG Settings—Tone Detection—DISA Tone Detection—Cyclic
→ [477] DISA Cyclic Signal Detection
• CO-to-CO Line Call Duration Limitation
For a call between two outside parties, even if end of call detection cannot be performed, the call can
be disconnected by a system timer. (→ 1.3.15 CO Line Call Limitation) If the timer expires, the line will
be disconnected unless the originating caller extends the time by sending any DTMF signaling. The
caller can prolong the call duration within the preprogrammed time period and preprogrammed number
of times.
80 Feature Manual