1.16Optional Device Features
[Flowchart]
A DISA call from an outside party is received.
Is there an idle port on the
MSG cards?
Yes
(DISA Delayed Answer Time
The PBX answers the call.
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A |
| (DISA Mute Time | |||
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The outgoing message (OGM) plays and
the PBX starts to receive the DTMF signalling.
F
Is the first digit dialled?
Yes
The outgoing message (OGM) stops.
Is the second digit dialled?
Yes
No
Does the trunk group that
received the call employ Intercept
Routing Busy DND?
Yes
The call is routed to the intercept destination.
No
(DISA 1st Dial Time for Intercept
The call is routed to the Operator. (Intercept Routing No Destination)
Goes to C
No
(DISA 2nd Dial Time for AA Time-out)
No
The call is routed to the operator. (Intercept Routing No Destination)
No
The PBX receives the following dialled digits and checks the dialled number.
What is the DISA security mode?
Continued to the next page
Is the first dialled digit assigned a destination for the DISA AA service?
Yes
The call is routed to the destination.
