Panasonic KX-NS500 - Page 213

No
No
No
Yes
Yes
The message for
busy is sent to the
caller.
F
The call is routed to
the intercept destination.
(Intercept Routing Busy)
G
The call is disconnected.
A
Yes
Does the caller
press while hearing a busy
tone (Call Retry)?
(Busy Tone /
DND Tone
Continuation
time expires)
Is an Intercept
Routing Busy destination
assigned?
Is a DISA Busy
Message assigned?
Busy tone
OGMIntercept Routing Busy tone
What method is assigned
for DISA Intercept
Routing DND?
The call is disconnected.
No
A
The call is routed to
the intercept destination.
(Intercept Routing DND)
Yes
G
Does the caller
press while hearing a busy
tone (Call Retry)?
The message for
the DND mode is
sent to the caller.
F
(Busy Tone /
DND Tone
Continuation
time expires)
Continued from previous page
Continued from previous page
Conditions
CAUTION
There
is a risk that fraudulent telephone calls will be made using the Trunk-to-Trunk 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 (Trunk 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.
• Maximum simultaneous OGM Channel
If no DSP card is installed, the maximum number of simultaneous OGM channels is 2. If a DSP card is
installed maximum simultaneous OGM channels is 64. However, in this case DSP resources will be used.
• DSP Resource Usage
A DISA call requires a certain number of DSP resources. If all DSP resources are in use, this operation
cannot be performed. To ensure a minimum level of performance, DSP resources can be reserved for
conference calls. (® 5.5.4 DSP Resource Usage)
• 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).
→ 10.3 PBX Configuration—[2-3] System—Timers & Counters—DISA / Door / Reminder / U. Conf—
DISA—Delayed Answer Timer (s)
• Call Retry
Feature Guide 213
2.16.1 Direct Inward System Access (DISA)