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Internet Unrelenting market demand for video-based applications over mobile networks is driving the increased deployment of 3G networks. The 3G-324M protocol is used by 3GPP and 3GPP2 standards organizations to combine voice, video, data and control into a single 64kbps stream of circuit-switched data. This is a departure from the standard Real-Time Transport Protocol/Real-Time Transport Control Protocol (RTP/RTCP) used to transport real-time video and voice over IP networks. The industry’s use of traditional video gateways to bridge video in the mobile network (3G-324M) and in the IP network (video/voice over RTP) has multiple deficiencies impeding migration to 3G networks. Business - Click the link on the left to visit our partner sites under business/finance/loan/mortgage category more 1 2 3 4 5 Computers - Click the link on the left to visit our partner sites under computer hardware/software/peripheral category more 1 2 3 4 5 Internet - Click the link on the left to visit our partner sites under webhosting/webdesign/internet marketing category more 1 2 3 4 5 Software - Click the link on the left to visit our partner sites under software category more 1 2 3 4 5 Web Design - Click the link on the left to visit our partner sites under web design/development category more 1 2 3 4 5 Web Hosting - Click the link on the left to visit our partner sites under web hosting category more 1 2 3 4 5 Web Promotion - Click the link on the left to visit our partner sites under search engine optimization/internet marketing category more 1 2 3 4 5 Web Resources - Click the link on the left to visit our partner sites under other web category more 1 2 3 4 5 Recreation - Click the link on the left to visit our partner sites under travel/hotel/cruise category more 1 2 3 4 5 Casino - Click the link on the left to visit our partner sites under online gambling/poker/blackjack/roulette category more 1 2 3 4 5 Health - Click the link on the left to visit our partner sites under online pharmacy/hospital/health category more 1 2 3 4 5 Shopping - Click the link on the left to visit our partner sites under online shopping/gift category more 1 2 3 4 5 Miscellaneous - Click the link on the left to visit our partner sites under all other categories more 1 2 3 4 5 In the mobile network, 3G-324M–based video content is transported using a single H.223 64kbps stream that multiplexes audio, video, data, and control information. The video portion of the H.223 protocol is usually MPEG-4 and the audio portion uses NB-AMR compression. The channel parameter exchange and session control portion uses the H.245 protocol. The complexities involved in delivering these services result in significant performance derogation and increased operational costs. For the industry to absorb the impending explosion in demand for video-based applications over mobile networks, radical cost-saving and complexity-reducing changes are needed. Those changes require a gateway capable of handling the circuit-switch–to–packet-switch layer while offloading other tasks to a separate media server or to the IP videophone itself.

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