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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
OGM
Intercept 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. (
®
•
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).
→
•
Call Retry
Feature Guide
213
2.16.1 Direct Inward System Access (DISA)
Summary of Contents for KX-NS500
Page 14: ...14 Feature Guide Table of Contents...
Page 15: ...Section 1 For Your Safety Feature Guide 15...
Page 18: ...18 Feature Guide 1 1 1 For Your Safety...
Page 19: ...Section 2 Call Handling Features Feature Guide 19...
Page 57: ...632 Maximum Number of Agents Feature Guide 57 2 2 2 Incoming Call Distribution Group Features...
Page 107: ...User Manual References 1 2 1 Basic Calling Feature Guide 107 2 5 4 Trunk Call Features...
Page 193: ...User Manual References 1 4 2 Holding a Call Feature Guide 193 2 13 1 Call Hold...
Page 324: ...324 Feature Guide 2 30 2 Outgoing Message OGM...
Page 325: ...Section 3 Unified Messaging System Feature Guide 325...
Page 375: ...Section 4 Network Features Feature Guide 375...
Page 464: ...464 Feature Guide 4 3 6 Network ICD Group...
Page 465: ...Section 5 System Configuration and Administration Features Feature Guide 465...
Page 560: ...560 Feature Guide 5 6 7 PING Confirmation...
Page 561: ...Section 6 Appendix Feature Guide 561...
Page 578: ...578 Feature Guide 6 5 2 PFMPR Software File Version 004 2xxxx...
Page 579: ...Feature Guide 579 Notes...