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.
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.