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    12 <task xml:lang="en" id="GUID-FB05DCDD-38EC-53FB-865C-CF56727A47B7"><title>Multimedia Circuit Switched Call Settings Tutorial</title><shortdesc>This tutorial describes how to setup and control a multimedia circuit switched (CS) call. </shortdesc><prolog><metadata><keywords/></metadata></prolog><taskbody> <context><p>The <i>Multimedia CS calls</i> is a 3G WCDMA specific service that allows two or more media components such as voice, audio, data, video and picture to be combined in a call. A multimedia call is treated by the Mulitmode ETel API as a data call that is used to run the 3G-324M Multimedia protocol over the top of the data connection. </p> </context> <steps-unordered> <step id="GUID-D15BFB63-B16E-5563-A180-E3902B91A79C"><cmd/><info>Use <xref href="GUID-7B623041-5DB3-3EF6-AAF4-5AA89B519855.dita"><apiname>RMobileCall::NotifyVoiceFallback()</apiname></xref> to request a notification if a fallback occurs. </info> </step> </steps-unordered> </taskbody></task>