Intel has announced a new power-saving technology called Remote Wake that will let outfitted computers doze in a power-saving mode until an appropriate message is received over the Internet, either via a VoIP call or another messaging medium. While the Wake on LAN protocol has been around for some years, allowing computers with the right Ethernet card and software to monitor a network even while sleeping for a Sleeping Beauty like magic kiss, Remote Wake goes far beyond that.
Intel has only released sketchy details--there's not even a link on their Web site--but Remote Wake would have to maintain a persistent network connection with a central server to function as Intel intends, as most computers in homes are behind Network Address Translation (NAT) gateways that prevent direct access. It's possible that a combination of UPnP (Universal Plug and Play) and Remote Wake are required to leave an external port on the Internet-facing side of the gateway active, that can be used to route traffic to the snoozing system.




