<?xml version="1.0" encoding="utf-8"?>

<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

<!-- This component and the accompanying materials are made available under the terms of the License 

"Eclipse Public License v1.0" which accompanies this distribution, 

and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->

<!-- Initial Contributors:

    Nokia Corporation - initial contribution.

Contributors: 

-->

<!DOCTYPE task

  PUBLIC "-//OASIS//DTD DITA Task//EN" "task.dtd">

<task id="GUID-4B885E13-AC1E-5208-9F07-E6219E214626" xml:lang="en"><title>Call

Forward Status Tutorial</title><shortdesc>This tutorial describes how to get the call forward status information

with the telephony API for applications. </shortdesc><prolog><metadata><keywords/></metadata></prolog><taskbody>

<context id="GUID-01738CA7-BFF1-4BCF-A586-AE7AE6680AE6"><p>The call forward information is only available on the GSM and

the WCDMA networks.  </p></context>

<steps id="GUID-37576512-F408-5B5B-A660-21C97860284B">

<step id="GUID-FDD5B539-DF97-5C3B-AE17-34B1BE12622A"><cmd/>

<info>create a new instance of <xref href="GUID-5810DCBE-9C54-3ACC-9714-2A48D48940EF.dita"><apiname>CTelephony</apiname></xref>  </info>

</step>

<step id="GUID-6ABACC42-A7D1-506C-90EB-175CA2B0FE29"><cmd/>

<info>call <xref href="GUID-5810DCBE-9C54-3ACC-9714-2A48D48940EF.dita"><apiname>CTelephony::GetCallForwardingStatus()</apiname></xref> to

get the call forward status information </info>

<info>pass a <xref href="GUID-5810DCBE-9C54-3ACC-9714-2A48D48940EF.dita"><apiname>CTelephony::TCallForwardingCondition</apiname></xref> object </info>

</step>

<step id="GUID-0A59F98D-641A-5ABD-8112-C0A62FAD9A1A"><cmd/>

<info>you can cancel the asynchronous request with a <xref href="GUID-5810DCBE-9C54-3ACC-9714-2A48D48940EF.dita"><apiname>CTelephony::EGetCallForwardingStatusCancel</apiname></xref> enumeration. </info>

</step>

</steps>

<example id="GUID-BD080473-17C3-534E-A963-7C41A82C37BA"><title>Call forward

status example</title> <codeblock id="GUID-93593481-AC16-5FF9-A989-D3D4B4B7D2CF" xml:space="preserve">#include &lt;e32base.h&gt;

#include <Etel3rdParty.h>

class CClientApp : public CActive

    { 

private:

    CTelephony* iTelephony;

    CTelephony::TCallForwardingSupplServicesV1 iCallForwardingSupplServicesV1;

    CTelephony::TCallForwardingSupplServicesV1Pckg iCallForwardingSupplServicesV1Pckg;

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),

      iCallForwardingSupplServicesV1Pckg(iCallForwardingSupplServicesV1)

    {

    //default constructor

    }

void CClientApp::SomeFunction()

    {

    CTelephony::TCallForwardingCondition condition = CTelephony::ECallForwardingNoReply;

    iTelephony->GetCallForwardingStatus(iStatus, condition, iCallForwardingSupplServicesV1Pckg);

    SetActive();

    }

void CClientApp::RunL()

    {

    if(iStatus==KErrNone)

       {

       if( iCallForwardingSupplServicesV1.iCallForwarding == CTelephony::ENotActive )

          {} // The call forwarding condition is inactive; 

             // If the phone user does not answer a call then the call is _not_ forwarded

       }

    }

void CClientApp::DoCancel()

    {

    iTelephony->CancelAsync(CTelephony::EGetCallForwardingStatusCancel);

    }</codeblock> </example>