ABSTRACT: Call management services are a set of features that build on the capability to transport a calling party's number between end offices with Common Channel Signaling (CCS) call setup messages. In addition, some call management services use non-circuit-associated messages that allow a switching office to obtain intermission from another switching office, such as the busy/idle status of a line, without setting as a call between the switching offices. CLASS (SM) Automatic Callback (AC), Automatic Recall (AR), and Screening List Editing (SLE) are three examples of call management services.

This Generic Requirements (GR) document provides interconnecting CCS Networks (ICNs) with compatibility information required for interconnecting with Local Exchange Carrier (LEC) networks for call management services. This document is a companion document to GR-905, Common Channel Signaling (CCS) Network Interface Specification (CCSNIS) Supporting Network Interconnection, Message Transfer Part (MTP) and Integrated Services Digital Network User Part (ISDNUP), and GR-1432, CCS Network Interface Specification (CCSNIS) Supporting SCCP and TCAP, and supplements the basic information in them for call management services.

GR-1429 replaced TA-NWT-001429.