19-02-2015, 08:12 PM
Sir its my first time to do anchoring....I m too much excited to do it....actually its a exhibition event of construction material... I want a formal anchoring script , can you give me some guidelines....
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generic access network ppt free download
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Sir its my first time to do anchoring....I m too much excited to do it....actually its a exhibition event of construction material... I want a formal anchoring script , can you give me some guidelines....
25-03-2017, 10:53 AM
Generic Access Network or GAN is a telecommunications system that extends mobile voice, data and multimedia applications (IMS / SIP) over IP networks. Unlicensed Mobile Access or UMA is the business name used by mobile companies for external IP access to their primary networks. The next generation system is called Wi-Fi Calling by several handset manufacturers, including Apple and Samsung, a move that is being mirrored by companies like T-Mobile US. Essentially, GAN allows cell phone packets to be sent to an access point to the network over the Internet, rather than over-the-air using GSM / GPRS, UMTS or the like. A separate device known as "GAN Controller" (GANC) receives this data from the Internet and feeds them into the telephone network as if coming from an antenna in a tower. Calls can be placed or received in the handset as if they were directly connected by air to the GANC presence point. The system is essentially invisible to the network as a whole.
In its most common form, GAN is used to enable UMA-compatible mobile phones to use WiFi networks to connect calls, rather than conventional cell towers. This can be useful in locations with poor cellular coverage, where some other form of Internet access is available, especially in the home or office. The system offers uninterrupted transfer, so the user can switch from cell to WiFi and again with the same invisibility that the cellular network offers when moving from tower to tower. Because the GAN works over the Internet, a UMA-capable phone can connect to your service provider from anywhere with Internet access. This is particularly useful for travelers, who can connect to their provider's GANC and make calls in their service area from anywhere in the world. This is subject to the quality of the Internet connection, however, and may not work well over limited bandwidth or long latency connections. To improve the quality of service in the home or office, some providers also provide a specially programmed wireless access point that prioritizes UMA packets.
History
UMA was developed by a group of operators and supplier companies. Initial specifications were published on September 2, 2004. The companies then contributed to the 3rd Generation Partnership Project (3GPP) specifications as part of the 3GPP work item "Generic Access to A / Gb Interfaces". On April 8, 2005, 3GPP approved the specifications for generic access to A / Gb interfaces for 3GPP Release 6 and renamed the system to GAN. But the term GAN is little known outside the 3GPP community, and the term UMA is more common in marketing.
In its most common form, GAN is used to enable UMA-compatible mobile phones to use WiFi networks to connect calls, rather than conventional cell towers. This can be useful in locations with poor cellular coverage, where some other form of Internet access is available, especially in the home or office. The system offers uninterrupted transfer, so the user can switch from cell to WiFi and again with the same invisibility that the cellular network offers when moving from tower to tower. Because the GAN works over the Internet, a UMA-capable phone can connect to your service provider from anywhere with Internet access. This is particularly useful for travelers, who can connect to their provider's GANC and make calls in their service area from anywhere in the world. This is subject to the quality of the Internet connection, however, and may not work well over limited bandwidth or long latency connections. To improve the quality of service in the home or office, some providers also provide a specially programmed wireless access point that prioritizes UMA packets.
History
UMA was developed by a group of operators and supplier companies. Initial specifications were published on September 2, 2004. The companies then contributed to the 3rd Generation Partnership Project (3GPP) specifications as part of the 3GPP work item "Generic Access to A / Gb Interfaces". On April 8, 2005, 3GPP approved the specifications for generic access to A / Gb interfaces for 3GPP Release 6 and renamed the system to GAN. But the term GAN is little known outside the 3GPP community, and the term UMA is more common in marketing.
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