Keywords: asterisk

# Introduction

This document contains various pieces of information that are useful for reference purposes.

Subsections

- License Information
  - Hold Music
- Security
  - Introduction
  - Network Security
  - Dialplan Security
  - Log Security
- Hardware
  - Introduction
  - DAHDI compatible hardware
  - Non-DAHDI compatible hardware
  - mISDN compatible hardware
  - Miscellaneous other interfaces