AT&T 555-620-126 Telephone User Manual


 
Using Feature Codes
General Instructions
For those features that require you to dial a feature code, this
section provides general instructions.
In general, you dial
#
and a feature code to access a feature.
and # and the same feature code to cancel the feature.
Chapter 5 describes each feature and how to use it;
Appendix B provides a summary of features and feature
codes.
Note:
To use
#
to access features, you must not be on an
outside line —
that
system’s dial tone,
is, you
not the
must be listening to the
telephone company’s dial tone.
Since rotary-dial telephones do not have the
#
or
symbols,
rotary-dial telephone users can. use any features described in
this guide that do not require the use of these symbols,
including Callback (Automatic), Call Waiting, Conference,
Hold, Paging (on speakerphones), and Transfer. For more
information on using a rotary-dial telephone, contact your
system manager.
3-2
General Instructions