Asterisk Gateway Interface 1.4 and 1.6 Programming

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  • Create AGI applications with Asterisk easily using PHPAGI, a PHP class library
  • Avoid going through the normal pitfalls of novice developers when developing Asterisk-based applications and services for the first time
  • Develop AGI scripts and FastAGI servers using Asterisk-PERL modules
  • Configure your AMI login information in the phpagi.conf file in order to utilize the AMI interface with PHPAGI
  • Understand the Asterisk Manager Interface and its utilization in Asterisk applications
  • Develop full web-based call-back platforms and highly interactive IVR applications using PHP and PHPAGI
  • Learn proper development paradigms to easily scale your services and applications
  • Get ideas for various Asterisk-based services and applications that you can create

Asterisk is the world's leading open-source PBX, telephony engine, and telephony applications toolkit with immense flexibility.

This book will give you a firm understanding of Asterisk Gateway Interface (AGI) development and proper AGI development practices. You will learn how to formulate Atomic AGI-enabled scripts, enabling rapid development within a well-defined Asterisk execution and runtime environment.

This book builds from the simplest form of an Asterisk application, the dialplan-based application, gradually building a full understanding of AGI scripting. The book also introduces a new concept of AGI development named "Atomic AGI" or "Particle Programming". It will introduce you to various techniques of interacting with the user, where user interaction isn't limited to keypad-based input, but also includes recording messages from the user, sending output to the user, and controlling the call flow.

The book takes a pragmatic approach with clear and complete examples, and a service development project — allowing you to understand the project cycle of developing an Asterisk-based service or application.

  • Develop voice-enabled applications utilizing the collective power of Asterisk, PHP, and the PHPAGI class library
  • Learn basic elements of a FastAGI server utilizing PHP and PHPAGI
  • Develop new Voice 2.0 mash ups using the Asterisk Manager
  • Add Asterisk application development skills to your development arsenal, enriching your market offering and experience
  • Up to date for Asterisk version 1.6 and covers all previous versions
Page Count 220
Course Length 6 hours 36 minutes
ISBN 9781847194466
Date Of Publication 2 Feb 2009


Nir Simionovich

Nir Simionovich has been involved with the Open Source community in Israel since 1997. His involvement with the Open Source community started back in 1997, when he was a student in the Technion—Israel’s Technology Institute—in Haifa. Nir quickly became involved in organizing Open Source venues and events, promoting the usage of Linux and Open Source technologies in Israel.

In 1998, Nir started working for an IT consulting company (artNET experts Ltd), where he began to introduce Linux-based solutions for enterprises and banks. By the year 2000, Nir had become a SAIR/GNU certified Linux trainer and administrator, slowly educating the future generations of Linux admins.

In 2001, Nir moved to the cellular content market, working for a mobile content delivery company (m-Wise Inc.—OTC.BB: MWIS.OB). During his commission at m-Wise, Nir successfully migrated a company that was built purely on Windows 2000 and ColdFusion to open source technologies, such as Mandrake Linux (today Mandriva), Apache Tomcat, and Kannel (open source SMS/WAP gateway).


Coming to 2006, Nir had co-founded Atelis (Atelis PLC—AIM: ATEL). Atelis is a Digium distributor and integrator. During the course of 2006, Nir developed an Asterisk-based international operator services platform for Bezeq International, which replaced a Nortel DMS-300 switch. This platform is currently in use by Bezeq International in Israel, serving over 4000 customer a day.


In mid 2007, Nir left Atelis to become a freelance Asterisk promoter and consultant. Nir is currently providing Asterisk consulting and development services for various companies, ranging from early-stage start-up companies, through VoIP service providers and VoIP equipment vendors. In his spare time, Nir is the founder of the Israeli Asterisk users group, the website maintainer of the group, and an Asterisk developer, dealing mainly with the localization aspects of Asterisk to Israel.

Coming to 2008, Nir's company (Greenfield Technologies Ltd) won the Digium Innovation award at AstriCon 2008, in the pioneer division—for its implementation of a phone-based prayer system, allowing people from around the world to pray at the western wall in Jerusalem.