Direct Inward System Access (Disa) - NEC ASPILA EX Feature Manual

Direct Inward System Access (DISA)

• Available - 15 users, 15 DISA Classes of Service and 200 trunks.
Description
168 Features
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:
• 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
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 control the capabilities of the DISA callers dialing into your system. When a DISA caller first
accesses the system, 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:
• 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 sys-
tem. 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.
• Paging
Internal and External Paging may be available to DISA callers. This allows co-workers in
adjacent facilities, for example, to broadcast announcements to each other.
• Direct Trunk Access
Direct Inward System Access (DISA)
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