ABSTRACT: Integrated Customer Advanced Network (ICAN) Electronic Tandem Switching (ETS) services provide numbering, routing, restrictions, and accounting features for ICAN calls. ICAN ETS services include ICAN Numbering Plan, ICAN Automatic Flexible Routing (AFR), Facility Restriction Levels (FRLs), Authorization Codes, Traveling Class Marks (TCMs), and Account Codes.

This document contains switching and signaling generic requirements intended to support ICAN ETS services that can be provided using either the Stored Program Control switching System (SPCS)-based or Advanced Intelligent Network (AIN)-based option.

Revision 1 provides clarification, modifications, and additions in the following areas for consistency with GR-2821, "Generic Requirements For ICAN Signaling System No. 7 (SS7)-Supported Virtual Private Facilities," and GR-2823, "PRI Common Element Procedures and Service Information Transport Generic Requirements": memory administration for SS7-supported Virtual Private Facilities (VPFs), and the use of the remote operations parameter for carrying Traveling Class Mark (TCM) in SS7.

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