Is the correct
PIN entered?
Does the caller press
while hearing the reorder
tone (Call Retry)?
Is the Walking COS/Verification
Code Entry feature number dialed?
Yes
No
No
NoneNoneNoneNone All SecurityCO Line Security
Yes
Is the dialed number
an extension number or
floating extension number?
Yes
No
Extension No./
Floating
Extension No.
What is the dialed number?
Feature No.*
(Absent Message,
FWD, etc.)
The feature is set.
CO Line Access No.
+ Telephone No.
Other
The dialed number is sent to the CO line.
Reorder tone
Yes
No
ABBCCDDNo Security
The call is disconnected.
Continued from previous page
(DISA Reorder
Tone time
expires)
Yes
Is the extension
in DND mode?
Yes
No
ANo
Yes
The call is established.
The call is routed to the
intercept destination.
(DISA Intercept Routing
No Answer)
Does the destination
answer the call?
Does the
destination
answer
the call?
No
Yes
The call is established.
The call is disconnected.
EEDoes the caller press
while hearing a ringback
tone (Call Retry)?
The call is directed to the extension.
The caller hears a ringback tone.
(DISA Disconnect
Time after
Intercept expires)
(DISA Intercept
time expires)
G* Feature numbers are available only when the Walking COS feature is used.
No
No
No
Is the extension
busy?
Is Call Waiting
mode on?
Yes
Yes
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