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ISDN Selective Call Acceptance (I-SCA) Generic Requirements


Document Number GR-1290
Issue Number 01
Issue Date Jun 1994
Replaces TA-NWT-001290 Issue01
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    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:

    • Feature Operations
    • ,
    • Internal Call Processing Controls
    • ,
    • Signaling/Message Structure
    • ,
    • Administration/Operations
    • ,
    • Interactions
    • ,
    • Limitations and Restrictions, and
    • Timing and Tolerances.
    GR-1290 replaced TA-NWT-001290.

    Components of this product are:
    GR-1290-CORE

    Table of Contents:


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