Motorola, exhibiting at the International Consumer Electronics Show in Las Vegas, has announced its new Residential Seamless Mobility Gateway (RSG) family, which includes broadband-powered gateways that combine a four-port router and 802.11b/g wireless access point functionality with a built-in voice over IP adapter.

The Motorola RSG can seamlessly transfer voice calls between wireless LAN coverage in the home and the public cellular network without interrupting the call, when paired with a dual-mode handset and connected to a network and service that supports this feature, the company said. When operating in the home, the gateway will automatically route the call to the best available network or service option.

There are two products in the Motorola RSG family: the RSG2500, which is expected to be available this winter, and the RSG3500, which adds the ability to power two lines of primary VoIP telephone service within the home and is due out next summer.

Motorola today also introduced the SVG2500 Wireless VoIP Cable Modem Gateway, an all-in-one home communications hub that integrates digital phone service and a wireless access point with a Motorola cable modem. Soon, Motorola said, its SVG family will support the fixed-mobile convergence features of the RSG service mentioned above, offering service providers an integrated product for delivering ‘quadruple play’ offering of voice, video, data, and wireless services to customers. That product is expected to be available in Spring 2006.