FEATURES GUIDE

General Features
Features Guide 95
An outside call is received.
The DISA Delayed Timer starts.
The Intercept Timer expires.
The caller reaches
the DISA line.
One of the resources is
available. (Outgoing
Message sent.)
All resources
are busy.
Is IRNA employed?
Intercept
Routing starts.
Kept waiting
with a ring
back tone.
Making an extension call (Ringing).
Making an extension call (Busy ).
Making an outside call (Ringing).
Making an outside call (Busy).
Making an outside call (Restricted).
Enter a wrong number .
The extension is out of service. (Reorder tone)
Is IRNA
employed?
Intercept
Routing starts.
No Answer Timer starts.
Disconnected
after 10 seconds.
Yes
No
No
The caller does not
reaches the DISA line.
An extension/a group will ring
depending on the Intelligent
Call Handling table.
Yes
Not dialling
An extension/a group
will ring depending on
the Intelligent
Call Handling table.
The Intercept Timer expires.
Disconnected if
you enter a wrong
code 3 times.
No
Yes
No
Is User Code accepted
or unnecessary?
Is AA/DISA dial
accepted?
Yes
DISA AA Timer starts.
Timer 10 sec.
Timer10 sec.
Re-try
(Up to 3 times )
Flowchart of possible cases and results for DISA calls