December 2009
Beginner
840 pages
14h 21m
English
Content preview from Practical Asterisk 1.4 and 1.6: From Beginner to Expert
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5. Dialplan Programming
In Asterisk, functions or programs can be implemented either externally, through an Asterisk Gateway Interface (AGI) script (in much the same way that a Common Gateway Interface [CGI] script can add functionality to a web page) or internally, through functions and applications in the dialplan. This chapter focuses strictly on the internal functions; AGI is treated in depth in a separate chapter.
The dialplan is defined in the extensions.conf configuration file. The dialplan itself looks much like a BASIC program. The administrator can implement features and call flow using a simple scripting language.
5.1 Programming “How-To”
Whatever your experience level with Asterisk (whether you’re an administrator, programmer, telephone ...
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