The New York Times > Business > 2 Companies to Make Gear for Phoning Over Internet

The New York Times > Business > 2 Companies to Make Gear for Phoning Over Internet "Linksys and Netgear, two competing providers of home networking equipment, plan to announce today that they are entering the business of making equipment used to place telephone calls over the Internet, according to industry executives.
In both cases, Linksys and Netgear plan to announce that they are selling equipment designed specifically for use by Vonage, a start-up company that has become a pioneer in providing so-called Internet telephony."

BTW I reconfigured my home network and put the Vonage box in-line between my cable modem and my Linksys wireless router (the Vonage box was previously connected through the Linksys); the phone service is now much better.