If it is free, does it have value? Free for business application, the open source PBX also has risks, costs and limitations. Open source development is really a community effort, not a specific vendor's solution. This broadens the number of those producing the code but also diffuses the focus for support of the open source code.This tip is focused on the concept of the open source PBX, along with its advantages and risks. There are several other open source PBXs besides Asterisk. Those will be e   read more »