AT&T 518-455-317 manual System Telephones

Learning About Telephones

3

This chapter explains how system and standard phones work with the system, as well as combination extensions where more than one phone or standard device is installed. System phones are described first, followed by standard phones on page 3-7 and combination extensions on page 3-10. In addition, call handling features are listed on page 3-11. See the feature name in Chapter 5 for details on a specific feature.

System Telephones

System phones, which include the MLS-34D, MLS-18D, MLS-12D, MLS-12, MLS-6, and MLC-6 models, have several buttons and indicators in common. The following pages explain where they are and how they work.

Learning About Telephones 3-1