The FreeSWITCH design: modular, scalable, and stable
The design goal of FreeSWITCH is to provide a modular, scalable system around a stable switching core, and provide a robust interface for developers to add to and control the system. Various elements in FreeSWITCH are independent of each other and do not have much knowledge about how the other parts are working, other than what is provided in what are called ''exposed functions''. The functionality of FreeSWITCH can also be extended with loadable modules, which tie a particular external technology into the core.
FreeSWITCH has many different module types that revolve around the central core, much like satellites orbiting a planet. The list includes:
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