AT&T AT&T manual Description, Considerations, Interactions, Administration Requirements

Cannot coexist–One of the features cannot be provided if the other one is.

Network Features, Data Features, Station

SECTION 2—FEATURES AND SERVICES

This section describes the System Features,

Features, and Attendant Features of AT&T System 25. It also covers certain services that

support and	implement the features; included in this	category are the		digital	tape	unit, the
dial plan, system administration, and system maintenance.			A general discussion			of	data
topics is also	provided.
The feature	descriptions are arranged in alphabetical	order,	regardless	of the	feature		group

to which they belong. Information for each feature is presented under five headings: Description, Considerations, Interactions, Administration, and Hardware Requirements.

●Description

Defines the feature, describes what it does for the user, and how it is used.

●Considerations

Discusses the applications a n d b e n e f i t s o f t h e f e a t u r e , f o l l o w e d b y f e a t u r e parameters and factors to be considered when the feature is used.

●Interactions

Lists and briefly describes other features that can affect the feature being described. Interacting features are those that:

—Depend on each other—One of the features must be provided if the other one is.

—

— Affect each other–The operation of one feature modifies, or is modified by, the operation of the other.

— Enhance each other—The features, in combination, provide improved service to the user.

●Administration Requirements

States whether or not administration is required and lists items requiring administration.

●Hardware Requirements

List any additional hardware needed to use the feature.

Tabular listings of features by group (System, Network, Data, Station, or Attendant) immediately follow this introduction. Each type, standard, or optional of the feature, is also noted on these lists:

●S t a n d a r d f e a t u r e s — B u i l t i n t o e a c h s y s t e m ( a l w a y s p r o v i d e d b u t c a n r e q u i r e administration to make them operational)

● O p t i o n a l	f e a t u r e s – S u c h as Music - On - Hold, require both administration and
additional	hardware.

Features restricted to single-line or multiline voice terminals are noted where applicable. The MET sets operate the same way as 5-button 7300H series voice terminals, unless otherwise noted.

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