Open Source & PBX

Estoy investigando un tema que se ve muy potente, se trata del Proyecto Open Source llamado Asterisk, intentaré revisar la documentación y comentarles que tal se ve.

"Asterisk is a complete PBX in software. It runs on Linux and provides all of the features you would expect from a PBX and more. Asterisk does voice over IP in many protocols, and can interoperate with almost all standards-based telephony equipment using relatively inexpensive hardware."