Instruction manual

Features
This book is designed to provide both summary and detailed information about
every feature in the communications system. For each feature, the following
types of information are provided, as applicable:
■ At a Glance—summary information about the feature, including, for
example, users affected, telephones supported, programming code, and
factory settings
■ Description—a detailed description of the functions and typical uses of
the feature
■ Considerations and Constraints—an explanation of exceptions and
unusual conditions pertaining to the feature
■ Mode Differences—an explanation of variations in the use of the feature
in the different modes supported by the communications system
■ Telephone Differences—an explanation of variations in the use of the
feature with different telephones
■ Feature Interactions—a list of issues and considerations to be aware of
when using a feature in conjunction with another feature.
For ease of reference, features are covered in alphabetical order. For the
convenience of users of the previous releases of the communication system and
related products, an “Index of Feature Names” is included, showing where
information can now be found about features that may have been renamed or
reorganized in this release.
Features 1