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1.15 Optional Device Features
Feature Guide 111
[Flowchart]
Busy tone
A DISA call from an outside
party is received.
The PBX answers the call.
Is a security
code required?
A number is dialled.
Make an outside
(CO) line call.
No
One short beep
Nothing is dialled.
The call is sent to
the fax extension.
Yes
The security
code is entered.
No
Yes
The call is
disconnected.
The call is
disconnected.
The call is
established.
NoYes
The call is not answered.
The call is not
answered.
The code is correct.
The code is incorrect.
The call is
disconnected.
The call is not
answered.
Fax
(
CNG
)
tone
Cyclic tone,
CPC signal
Trunk or No
The call is
disconnected.
All
The call reaches the destination.
Reorder tone
The destination
extension(s) is(are) busy.
B
The call is not
answered for
40 seconds.
Call Waiting DISA
Busy tone
Goes to
Disconnect
Goes to
DISA OGM
A busy DISA
OGM is heard.
The call is sent to
another extension.
B
A
A
The call is
disconnected.
One
short beep
What is the DISA
Busy Mode?
Is Intercept Routing
employed?
What is the
security mode?
Is Intercept Routing
employed?
(DISA Delayed Answer Time expires)
(DISA OGM Mute Time expires)
(DISA Wait Timer after OGM expires)
(Intercept Time for Internal DISA expires)
The call is
disconnected.
The call is
established.
The call is
established.
The call is
established.
(DISA Ring Time before
Intercept expires)
Is the assigned
DISA OGM recorded?
Yes
No
(DISA Ring Time
before Intercept expires)
(DISA Ring Time after
Intercept expires)
Yes
Is DISA IRNA to BV
assigned?
BV is answered.
No
Goes to
C
C