Hybrid Fixed and Mobile Telephony

Iorek writes "Both Ericsson and BT have launched telephony products that erode the barriers between mobile phones and landlines. Ericsson's One Phone is a PBX system that can treat any mobile phone as an extension of the corporate phone network, while the BT Fusion handset behaves like a conventional fixed line cordless phone when it's near its base station (Bluetooth connection), and connects to the Vodafone network once it's out of range."