Direct Inward System Access (Disa) - NEC Univerge SV8100 Features And Specifications Manual

UNIVERGE SV8100
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 company 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 extension must have a Call
Appearance (CAP) key to answer the call.
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 allows 15 users, 15 DISA Classes of Service and 200 trunks.
DISA Class of Service
DISA Class of Service provides features and dialing restrictions for DISA callers. This allows you to
control the ability of the DISA callers dialing into your system. When a DISA caller first accesses the
system, they can be prompted to 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 does not 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 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 704 followed by the Trunk Group number (Trunk
Groups 1~100). This allows the DISA caller to place an outgoing call over the selected group. Trunk
Group Access bypasses the system Trunk Group Routing/ARS/Trunk Access Maps. As with dial 0
access, any toll charges are incurred by the system.
SV8100 Features and Specifications Manual

Direct Inward System Access (DISA)

Issue 1.0
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