freeswitch lua

Freeswitch is an open-source telephony platform that allows you to build various communication applications. It supports multiple scripting languages, including Lua. Lua is a lightweight and powerful scripting language that is often used for extending the functionality of Freeswitch.

With Lua, you can write custom applications, create dial plans, handle call control logic, and interact with various telephony features provided by Freeswitch. Lua scripts in Freeswitch are typically used for tasks such as call routing, IVR (Interactive Voice Response) systems, call recording, and more.

To use Lua with Freeswitch, you need to have the mod_lua module enabled in your Freeswitch installation. Once enabled, you can start writing Lua scripts to control call flows and handle telephony events.

Here is a simple Lua script example for Freeswitch that answers an incoming call and plays a welcome message:

-- answer.lua

session:answer()
session:streamFile("/path/to/welcome-message.wav")

In this example, the `session:answer()` function answers the incoming call, and the `session:streamFile()` function plays an audio file to the caller.

You can save this script as `answer.lua` and load it in your Freeswitch dial plan configuration to execute it when an incoming call arrives.

Note that this is just a basic example, and Lua with Freeswitch offers much more functionality and flexibility. Feel free to explore the official Freeswitch documentation and Lua scripting resources for more advanced use cases and examples.