TA NWT 001218 : ISSUE 1

Bellcore's preliminary view of generic requirements for a Distinctive Alerting feature as an ISDN based service operating through a Basic Access interface. The feature, called ISDN Distinctive Alerting (I DAL), is a terminating call management feature. It provides Distinctive Alerting treatment to the called customer when attempts are made to terminate calls placed from telephones or other qualifying terminals whose Directory Numbers (DNs) have been previously designated by the called customer and appear in an active I DAL screening list. This document presents proposed generic requirements for the following: 1. Feature Operations, 2. Internal Call Processing Controls, 3. Signaling Message Structure, 4. Administration operations, 5. Interactions, 6. limitations and restrictions