What is UMA Technology ??

UMA is the 3rd Generation Partnership Project (3GPP) global standard for subscriber access to mobile circuit, packet and IMS-based services over any IP-based access network, including the Internet. With UMA, mobile operators can now leverage the cost and performance advantages of IP access technologies (DSL, Cable, Wi-Fi...) to deliver high-quality, low-cost mobile voice and data services in the locations where subscribers spend most of their time - the home and office.

To enable access to the mobile service core via IP-based networks, the UMA standard defines a new core network element (the UMA Network Controller (UNC)) and associated protocols that provide for the secure transport of mobile signaling and user plane traffic over IP. The UNC interfaces into the core network via existing 3GPP specified interfaces.

Fundamentally, UMA provides a standard, scalable, secure IP interface into the core service network of mobile operators. By deploying a UMA Network Controller (UNC), mobile operators can extend all existing and future circuit, packet and IMS-based services over any IP-based access network, including the Internet. While initially developed to enable dual-mode cellular/Wi-Fi handset services, the UMA standard can be leveraged to deliver a number of compelling new fixed-mobile convergence services.

Below is the history of UMA technology development :

The 3GPP UMA standard was born from the requirements of mobile and integrated operators to deliver high-performance, low-cost mobile voice and data services to subscribers at home and the office. UMA has proven to be the ideal standard for mobile and integrated operators to extend circuit, packet and IMS services over the public Internet and continues to evolve to meet the needs of mobile and integrated operators worldwide.