UMA

UMA is a global standard created by the 3rd Generation Partnership Project (3GPP) to provide subscriber access to mobile wireless circuit, packet, and IMS-based services over devices using IP-based networks, such as DSL, cable, and Wi-Fi. UMA solutions, provided by way of a UMA Network Controller (UNC), promote seamless handovers, high levels of service transparency, and a relatively low-impact way of deploying converged services in a 2G GSM/GPRS network while realizing the cost benefits of unlicensed spectrum and internet backhaul. UMA also specifies seamless handovers between GSM and GPRS radios and unlicensed access as well as 3G networks. UMA, and the complementary IP Multimedia Subsystem (IMS) technology, are key elements in the transition to the fixed-mobile convergence of wireless devices.

Additional Information

Orange Launches 3G Based UMA Service

Questions and Answers

UMA Today

CB Home Run Integrates Mobile Phone and Wireless Internet For Improved Indoor Reception

T-Mobile Introduces Unlimited Calling Over Wi-Fi With the National Launch of T-Mobile HotSpot @Home