AT&T ISDN 7506 ユーザーズマニュアル

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Conventions
The following conventions are used in the procedures:
Gray Type
Procedural steps in gray type are steps that you should
follow if you do not have a button assigned for the
feature.
 
xxxxx
 
This box represents a call appearance button which is
used exclusively for placing, receiving, or holding calls.
The button has a red light and a green light and is
labeled with an extension number (shown as 
 
xxxxx
  
).
 
Feature
  
and
 
Feature xxxxx
 
[handset tone]
Each of these boxes represents a button that has a
feature assigned to it. The button is labeled with the
feature name, sometimes followed by an extension
number or a person’s name (shown as 
 
xxxxx
  
).
The tone that appears in brackets after a step indicates
what you should hear from your handset after
successfully performing that step.
For a list of tones and their meanings, see the section titled  Tones and Their
Meanings. 
For a list of glossary terms, see the section titled  Key Words to Know.