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<p>mobile. The RNC connects to the Circuit Switched Core Network through Media Gateway (<a href="page.php?w=Media_gateway">MGW</a>) and to the <a href="page.php?w=SGSN">SGSN</a> (Serving GPRS Support Node) in the <a href="page.php?w=Packet_Switched_Core_Network">Packet Switched Core Network</a>.</p>

<p><big>Interfaces</big></p>
<p><a href="page.php?w=Image%3AMobile_network.jpg">thumb</a>The logical connections between the network elements are known as interfaces. The interface between the RNC and the Circuit Switched Core Network (CS-CN) is called Iu-CS</p><p>
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