Lucent Technologies 555-661-140 manual Terms and Conventions Used, Lines, Trunks and Facilities

MERLIN LEGEND Communications System Release 6.1	Issue 1
Installation 555-661-140	August 1998
About This Book	Page liv
Terms and Conventions Used

Refer to the following documentation for additional information:

■Equipment and Operations Reference provides detailed information on system hardware, telephones, and other equipment. (Not updated since Release 3.0.)

■Feature Reference provides details on the features of the communications system.

■System Planning provides procedures and forms for planning and preparing a system for installation.

■System Programming gives procedural instructions for programming system features.

■User’s guides and Operator’s Guides give procedural instructions for programming and using telephone features.

“Related Documents,” later in this section, provides a complete list of system documentation together with ordering information.

In the USA only, Lucent Technologies provides a toll-free customer Helpline (1 800 628-2888) 24 hours a day. Call the Helpline, or your Lucent Technologies representative, if you need assistance when installing, programming, or using your system.

Terms and Conventions Used

In this document, the terms in the following list are used in preference to other, equally acceptable terms for describing communications systems.

Lines, Trunks and Facilities

Facility is a general term that designates a communications path between a telephone system and the telephone company central office. Technically a trunk connects a switch to a switch, for example the MERLIN LEGEND Communications System to the central office. Technically, a line is a loop-start facility or a communications path that does not connect two switches (for example, an intercom line or a