## Introduction to the SBM24 Button Module

The SBM24 Button Module extends the number of call appearances and feature buttons on your telephone. It provides 24 additional lines for incoming calls, outgoing calls, and calling features. Typical uses are:

- to provide additional lines for calls bridged from one or more other extensions,
- to provide abbreviated dialing buttons, and
- to provide buttons to access additional switch features like call forwarding.

Note that call appearances and features the Button Module displays also appear in the call appearances and features lists on your telephone.

Figure 1: The SBM24 Button Module

Figure notes:

1. Line buttons (for call appearance and features).
2. Screen regions.