Philips introduces UMA mobile phone reference design for phones that automatically switch between cellular and WLAN netw

Royal Philips Electronics announced today a complete Unlicensed Mobile Access (UMA) semiconductor reference design to make it easy for mobile handset manufacturers to bring UMA-enabled phones to their customers. The new UMA reference design creates a blueprint for a mobile phone that accesses GSM and GPRS mobile services through traditional cellular networks to automatically switch over to WLAN access points. This gives mobile phone customers added flexibility for advanced phone services as their phones detect the fastest and most cost-effective network without interruptions. If a phone is taken out of the WLAN range, it seamlessly switches back to the cellular network.