Apparently 40K VoIP lines is the floor, magic number for feasibility HandWaveAnalysis

Google Android SmartHome media VoIP - tie in with SmartGrid ? http://bit.ly/7vNwtT

Asterix thread on FlyerTalk

Includes information on compatible providers .

Asterix projects

Good source for Asterix implementation information.

TrixBox - VoIP Asterix PBX

The asterisk-based solution, TrixBox, enables the home or small business user to quickly set up a VOIP Asterisk PBX. A web GUI makes configuration and operation easy. We also provide an xPL (home automation) interface for easy interaction with other devices in the home.