Security Strategies in Linux Platforms and Applications, 3rd Edition

Basic Asterisk Configuration

Asterisk configuration files are typically installed in the /etc/asterisk/ directory. Most of the configuration filenames relate to different features. Asterisk configuration is centered around the dialplan, which can be a directory, a set of menu options, or even a group of channels. These are known as contexts and can be used to implement features such as the following:

• Access limits—Limit access to long-distance calls to certain telephones.

• Routing—Route calls based on their extensions.

• Autoattendant—Set up automated greeting with message prompts.

• Menus—Set up automated menus for different departments.

• Authentication—Require passwords to access certain extensions.

• Callback—Return calls to route through the presumably ...