Use the Administered Connections (AC) feature to administer virtual private-line connectivity over the AT&T Switched Network. Access is over an ISDN trunk group for which the Service Type field on the ISDN Trunk Group screen is set to SDDN (Software Defined Data Network). The system uses the Destination field on the Administered Connection screen to route calls when AC is active, based on associated authorized time-of-day fields.

You can establish an AC between:

• Two endpoints on the same server

• Two endpoints in the same private network, but on different servers

• One endpoint on the controlling server, and another endpoint off the private network

In all configurations, administer the AC on the server that has the originating endpoint. For an AC in a private network, if the two endpoints are on two different servers, Automatic Alternate Routing (AAR) through ISDN, DS1, or analog tie trunks and intermediate servers are usually used to route the connection. If required, you can also use Automatic Route Selection (ARS) and Generalized Route Selection (GRS) through the public network. The system routes the call over associated ISDN trunks. When the far-end answers, a connection occurs between the far-end and the near-end extension that is administered in the Originator field on the Administered Connection screen.