Asterisk is a leading Open Source PBX project that is widely available in many different deployment packages. This Technical Note covers a brief overview of what Asterisk is as well as an introduction to using PHP from within 4D v12. An explanation of how to use the Asterisk-PHP-API library to communicate with an Asterisk-based PBX server is also included. The information provided in this Technical Note should allow the 4D developer to be able to create some type of integration between their 4D database and an Asterisk-based PBX server.

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