UMA is the 3GPP standard for enabling secure cost-effective access to mobile services over the broadband IP access network. With UMA, operators can enable their subscribers to access all of their mobile voice, data and IMS services from any broadband location, including Wi-Fi. The UMA specifications were originally developed by Kineto, Alcatel, AT&T Wireless, British Telecom, Cingular, Ericsson, Motorola, Nokia, Nortel, O2, Research-in-Motion, Rogers Wireless, Siemens, Sony-Ericsson and T-Mobile US. The specifications are included in 3GPP Release 6, and available through the 3GPP web site.
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5:25 PM on December 21, 2008