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<task xml:lang="en" id="GUID-8FC2BA94-2374-5BFE-B4CF-624A6B0056BC"><title>Call Waiting Status Tutorial</title><shortdesc>This tutorial describes how to get the call waiting status information with the telephony API for applications. </shortdesc><prolog><metadata><keywords/></metadata></prolog><taskbody> <steps id="GUID-E24D656A-701E-5B29-B189-06304C4C7DE5"> <step id="GUID-4CDC8306-6814-5E5F-835A-694D1849A746"><cmd/><info>create a new instance of <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony</apiname></xref>  </info> </step> <step id="GUID-C37BEE6E-CB6F-50ED-81F1-4523E2312A6C"><cmd/><info>call<xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname> CTelephony::GetCallWaitingStatus()</apiname></xref> to get the call waiting information </info> </step> <step id="GUID-020F7560-2DC2-59E1-B685-579A33235C56"><cmd/><info>you can cancel the asynchronous request with a <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony::EGetCallWaitingStatusCancel</apiname></xref> enumeration. </info> </step> </steps> <example id="GUID-F3885187-FB33-5490-87C5-184138F7E4B3"><title>Call waiting status example</title> <codeblock id="GUID-05F9F0DE-5D96-55F8-B1B9-A9CE858CF5B7" xml:space="preserve">#include &lt;e32base.h&gt;

#include <Etel3rdParty.h>

class CClientApp : public CActive

    { 

private:

    CTelephony* iTelephony;

    CTelephony::TCallWaitingSupplServicesV1 iCallWaitingSupplServicesV1;

    CTelephony::TCallWaitingSupplServicesV1Pckg iCallWaitingSupplServicesV1Pckg;

public:

    CClientApp(CTelephony* aTelephony);

    void SomeFunction();

private:

    /*

       These are the pure virtual methods from CActive that  

       MUST be implemented by all active objects

       */

    void RunL();

    void DoCancel();

   };

CClientApp::CClientApp(CTelephony* aTelephony)

    : CActive(EPriorityStandard),

      iTelephony(aTelephony),

      iCallWaitingSupplServicesV1Pckg(iCallWaitingSupplServicesV1)

    {

    //default constructor

    }

void CClientApp::SomeFunction()

    {

    iTelephony->GetCallWaitingStatus(iStatus, iCallWaitingSupplServicesV1Pckg);

    SetActive();

    }

void CClientApp::RunL()

    {

    if(iStatus==KErrNone)

       {

       CTelephony::TSupplServiceStatus callWaitingStatus = iCallWaitingSupplServicesV1.iCallWaiting;

       }

    }

void CClientApp::DoCancel()

    {

    iTelephony->CancelAsync(CTelephony::EGetCallWaitingStatusCancel);

    }</codeblock> </example> </taskbody></task>