Introduction - AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual

Introduction

The MERLIN LEGEND Communications System is an advanced digital switching
system that integrates voice and data communications features. Voice features
combine traditional telephone features, such as Transfer and Hold, with
advanced features, such as Group Coverage and Park. Data features enable
the transmission of voice and data over the same system wiring. This chapter
describes the following aspects of the system:
Components—the required and optional equipment that makes up the
system
Functional Description-the functional units that make up the control unit,
their relationships, and the process of signaling
Modes of Operation—the three modes for which the system can be
configured: Key mode, Hybrid/PBX mode, and Behind Switch mode
Programming-general information about programming the system and
telephones
System Capacities and Requirements—the technical requirements and
capacities of the system, for example, hardware and software capacities
and environmental, power, and grounding requirements
Release Differences-enhancements provided by Release 1.1 and
Release 2.0 of the system
1-1
Introduction