Switching to VoIP

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Chapter 17: Asterisk Reference

voicemail.conf

Tells Asterisk how to operate its built-in voice mail server, called Comedian

Mail.

zapata.conf and zaptel.conf

Tell Digium’s signaling kernel modules (wcfxs, etc.) and the Asterisk PBX what

type of legacy interface hardware is installed and how it is configured (zaptel.

conf is in /etc; it’s the only config file not in /etc/asterisk).

There are many other configuration files. At a bare minimum, you’ll need to familiar-

ize yourself with extensions.conf and SIP.conf, h323.conf,orskinny.conf in order to

build a bare-bones VoIP server that can handle simple calls. If you’re using legacy

interface hardware such as the X100P card, you’ll also need to learn about zaptel.conf

and zapata.conf.

The files in /etc/asterisk follow a similar convention, mostly. Many have organiza-

tional sections that begin with a string of text in square brackets (

[ and ]). Following

each bracketed heading is a list of configuration settings and directives. A setting is a

string followed by

= and a user-specifiable value, like this:

writeprotect=yes

A directive has a slightly different syntax than a setting. Directives tend to have a

more complex definition, and convention dictates that they use the

=> operator

rather than simply

= (though either will work). This definition’s ...