Panasonic KX-TDA50G Feature Manual page 76

4.1.7 DISA (Direct Inward System Access)
[Flowchart]
A DISA call from an outside party is received.
Is there a port available?
Yes
The PBX answers the call.
A
The OGM plays and the PBX starts to
receive the DTMF signaling.
F
Is the first digit dialed?
Yes
The OGM stops.
Is a second digit dialed?
Yes
The PBX receives the dialed
digits and checks the dialed
number.
What is the DISA security mode?
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76 Feature Manual
No
The call is routed to an operator,
etc. (DISA Intercept when All
(DISA Delayed
DISA Ports are busy)
Answer time expires)
(DISA Mute & OGM Start Time
after Answering expires)
No
Operator
The call is routed to an
operator.
C
No
No
Is the first dialed digit assigned a
destination for the DISA AA service?
The call is routed to the destination.
(DISA First Digit Time
When No Dial expires)
What method is assigned for
DISA Intercept Routing No Dial?
Disable
The call is redirected to
The call is
the destination assigned
disconnected.
to AA-0 or AA-9.
(DISA Second Digit Time for
Automated Attendant expires)
Yes
AA-0, AA-9
C
Document Version 2008-11