Blio is busy building an IP PBX. It will run Asterisk, but the main thing that differentiates it from your average Linux PC with Digium cards is that the hardware is designed from scratch.. right here in Cape Town and Stellenbosch I should add.
Version 2 of the main PCB was completed this week. There is also a custom designed MiniPCI ISDN interface card and our own FXO and FXS modules. We are in the process of extending the Blio web management interface to work on the PBX.
It should all soon be available in a neat 1U casing at a price well below the cost of a mid-to-low range traditional PBX.
Here are some pictures from a demo at the Futurex trade show at the end of last year. At the time of this demo it was already a functional PBX that could route analog and VoIP calls.