ABSTRACT: This document provides additional information about the interconnection of the Telcordia customer CCS networks with Interconnection CCS Networks (ICNs) in support of CLASS(SM) Calling Name Delivery (CNAM).

The document describes the call control interface and the non-circuit-associated messaging interface between an ICN and the Telcordia customer network. The call control interconnection occurs when an ICN sets up an intraLATA or interLATA call to a Telcordia customer CNAM subscriber, and when a Telcordia customer sets up an intraLATA or interLATA call to an ICN CNAM subscriber. The non-circuit-associated interconnection occurs when an ICN queries a Telcordia customer CNAM database, and when a Telcordia customer queries an ICN CNAM database.

GR-1519 replaced TA-NWT-001519.

When using GR-1519, you may need to refer to GR-905, GR-1188, GR-246, GR-391, and/or GR-1432.

This GR also includes one or more Issue List Reports (ILRs) that details open or closed technical issues in the main document. The ILR(s) are automatically sent free of charge to the GR document purchaser.