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A converged network brings together voice and data, but it still must interact with other networks, some of which are still circuit-switched voice networks (PSTN), others of which are data-oriented. The G700 Media Gateway translates the signals from network to network.
In general, a G700 translates signals from one type of network to another; it manages the conversion of information from a network employing one standard to a network employing a different standard. A G700 commonly has terminations for several types of networks, such as Ethernet, ATM, T1/E1 digital, or analog. It usually supports several voice codecs. A G700 requires substantial Digital Signal Processing (DSP) power and IP packet handing capacity.
In general, an S8300 Media Server directs and controls the flow of voice and data traffic in a converged network; it mediates signalling between the IP and PSTN environments. The call control functions typically performed by an S8300 include call routing, call setup and tear down, user authentication, and signalling.
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