Direct Inward System Access (Disa) - NEC Aspire Product Description

Direct Inward System Access (DISA)

• Available - 15 users, 15 DISA Classes of Service and 200 trunks.
Description
DISA permits outside callers to directly dial system extensions, trunks and selected features. This
could help an employee away from the office that wants to directly dial co-workers or use the com-
pany's trunks for long distance calls. To use DISA, the employee:
DISA calls ring system extensions like other outside calls. If an extension has a line key for the
DISA trunk, the call rings that key. If the extension does not have a line key, the call rings an idle
CALL key.
You can set DISA operation differently for each Night Service mode. For example, a trunk can be a
normal trunk during the day and a DISA trunk at night. You can also set the routing for DISA trunks
when the caller dials a busy or unanswered extension, dials incorrectly or forgets to dial.
DISA Class of Service
DISA Class of Service provides features and dialing restrictions for DISA callers. This allows you to con-
trol the capabilities of the DISA callers dialing into your system. When a DISA caller first accesses the sys-
tem, they must enter a DISA password before proceeding. The system associates the password entered with
a specific user number, which in turn has a Class of Service. If the Class of Service allows the action (such
as making outgoing trunk calls), the call goes through. If the DISA Class of Service doesn't allow the
action, the system prevents the call. The DISA Class of Service options are:
Product Description
Aspire
Dials the telephone number that rings the DISA trunk
Waits for the DISA trunk to automatically answer with a unique dial tone
Dials the 6-digit DISA password (access code)
Waits for a second unique dial tone
Accesses a system trunk, uses a selected feature or dials a system extension
Trunk Group Routing/ARS Access
When a DISA caller dials into the system, they may be able to dial 9 and place outside calls.
Any toll charges are incurred by the system. The call follows the system's Trunk Group
Access or Automatic Route Selection - whichever is enabled.
Trunk Group Access
DISA callers may be able to access a specific trunk group for outgoing calls through the system. To
access a Trunk Group, the user dials Service Code 804 followed by the Trunk Group number (e.g., 1).
This allows the DISA caller to place an outgoing call over the selected group. Trunk Group Access
bypasses the system's Trunk Group Routing/ARS/Trunk Access Maps. As with dial 9 access, any toll
charges are incurred by the system. Also see Direct Trunk Access below.
Common Abbreviated Dialing
The system's Common Abbreviated Dialing bins may be available to DISA callers. This could
save the DISA caller time when dialing.
Operator Calling
A DISA caller may be able to dial 0 for the system's operator.
Section 3: Features
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