ABSTRACT: Integrated Services Digital Network (ISDN) Selective Call Acceptance (I-SCA), is a terminating call management feature. It enables
I-SCA users to instruct a Stored Program Control switching System (SPCS) to attempt terminating call completion to the I-SCA user only
from a limited number of calling Directory Numbers (DNs).
This document contains the Telcordia view of generic requirements for a Selective Call Acceptance feature operating through an
Integrated Services Digital Network (ISDN) Basic Access Interface. The document presents requirements for the following:
Internal Call Processing Controls
Limitations and Restrictions, and
Timing and Tolerances.
GR-1290 replaced TA-NWT-001290. Components of this product are: