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I HAVE A QUESTION ABOUT SOME CONTENT ON YOUR WEBSITE. HOW DO I CONTACT YOU?
The best way to contact the editors of UMA Today is by sending an email to . |
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DO YOU SELL THE PRODUCTS THAT YOU ARE DISPLAYING ON THIS WEBSITE?
We are not a reseller of products and we do not have direct access to the vendors of these products. The best way to contact a vendor is through their respective websites. |
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CAN YOU PUT ME IN TOUCH WITH THE VENDORS OF THESE PRODUCTS?
We do not provide this information. |
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CAN YOU TELL ME WHEN A NEW PRODUCT OR SERVICE IS GOING TO LAUNCH?
This website is an information resource about current UMA services, devices, and networks/operators. We do not address future launches or make predictions of any kind. |
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WHAT IS UMA?
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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IS UMA A RECOGNIZED STANDARD?
Yes. In September 2004, the UMA participating companies introduced the UMA specifications to 3GPP for consideration as a formal standard. In April 2005, the UMA specifications were formally incorporated into Release 6, thus making UMA the 3GPP standard for fixed/mobile convergence. Within the 3GPP specifications, UMA is referred to as Generic Access to A/Gb interfaces, and contained within TS 43.318. |
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| WHAT BENEFITS DOES UMA PROVIDE SUBSCRIBERS? |
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Improved coverage: UMA gives subscribers the indoor coverage they demand in the places they spend most of their time, at home and the office. |
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Broadband data rates: UMA enables subscribers to receive a true broadband experience for their mobile data and IMS services. |
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Lower costs: Depending on the service provider, mobile voice, data and IMS services accessed via UMA will typically have a lower charge than when access via the outdoor cellular network. |
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WHAT BENEFITS DOES UMA PROVIDE MOBILE OPERATORS?
• Increased Revenue: UMA drives significant new revenues by increasing the use of mobile voice, data and IMS services where subscribers spend most of their time, at home and the office.
• Lower CapEx/OpEx: UMA lowers capital and operational expenses by offloading mobile voice, data and IMS traffic from the macro cellular network to broadband/Wi-Fi whenever subscribers are at home or the office.
• Reduced Churn: UMA can reduce churn by providing subscribers with an enriched mobile experience where they spend most of their time, at home and the office. |
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DOES UMA SUPPORT IMS?
Yes. UMA is the 3GPP standard for enabling all mobile services to be accessed over broadband IP and Wi-Fi: voice, data and IMS. In fact, UMA expands the places where IMS services can be delivered. By adding Wi-Fi access at homes, workplaces and hotspots to the list of cellular coverage, subscribers can use their IMS services at more places, more frequently and with full broadband functionality. |
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IS UMA BASED ON SIP? WHY OR WHY NOT?
UMA and SIP perform different functions in a mobile network. SIP is an application layer technology that facilitates the creation of new IP-based mobile services. UMA is an access layer technology that enables mobile services (included SIP-based services) to be accessed over broadband/Wi-Fi. |
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DOES UMA SUPPORT STANDARD WI-FI ACCESS POINTS?
Yes. The UMA standard was specifically designed to support existing, commercial off-the-shelf Wi-Fi access points. |
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HOW DOES UMA DEAL WITH SECURITY IF TRAFFIC IS CROSSING THE INTERNET?
The 3GPP UMA standard defines the use of an IPSec tunnel originated in the handset and terminated on the UNC in an operator's core network. The UNC terminates the IPSec tunnel and handles user login and authentication to the mobile core network. |
