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TECHNOLOGY
The UMA Standard
 
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.
  
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