Telecor VS1 - Direct Inward System Access (Disa); DISA Example; Enabling DISA on a CO Port

VS1 Installation, Configuration & Operating Guide 203
DIRECT INWARD SYSTEM ACCESS (DISA)
Direct Inward System Access (DISA) is a way to gain access to the internal dial tone of the VS1
Telephone System from an external phone not connected to the system. The VS1 System only
allows internal dial tone from station Extension ports, and DISA allows you to call into a CO port
on the system to get internal dial tone. DISA allows features such as:
• Running Command Scripts
• Dialing internal extensions
• Placing external calls
• Dialing extensions of Paging Zones
• Dialing extensions of Auto Attendants
• Dialing extensions of ACDs
The main steps to setting up DISA on the VS1 System include:
1. Enabling DISA on at least one CO port
2. Targeting a CO port for DISA.
3. Setting up DISA passwords
DISA Example
1. From an outside telephone, dial a CO port telephone number configured for DISA operation.
2. After hearing the first ring, but before or during the second ring, press #.
• The CO line ceases ringing and no tone is heard. The silent line is a security measure
designed to prevent unauthorized access to the VS1 phone system.
3. Dial the extension number followed by the DISA password. If the correct code is entered, three
beeps sound and the caller hears the system internal dial tone. If an incorrect password is
entered, the line immediately disconnects.
4. Use * to return to internal dial tone anytime ringing is heard during DISA operation
Enabling DISA on a CO Port
Many VS1 System installers choose to make DISA available on only one CO port so that it is not
generally accessible to every end-user at a particular site. Providing access to a limited number of
people can help reduce fraud and abuse of the DISA feature.
Note It is more effective to use a CO port that is not in a hunt group so that the CO number is
always available to the caller wanting DISA access. If the CO port is part of a hunt group,
it should be in the middle of the hunt group.
1. In the VS1 Editor Tree Control display, click Port Configurations.
2. In the Port Configurations pane, select the configuration where you want to make changes.
For example, select the DAY configuration.
3. Select the CO port that DISA will be enabled on.