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<!DOCTYPE task

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

<task id="GUID-2332AFD7-30F2-5B4D-BBA9-3EA36D8F5E81" xml:lang="en"><title>Call

Barring Status </title><shortdesc>This tutorial describes how to get the call barring status information

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

<context><p>The call barring is a supplementary service. The client applications

can determine the status of the service with the <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony</apiname></xref> functions.

 </p></context>

<steps id="GUID-2BA7DD2F-8ECE-5F05-A534-FA8A213C2E04">

<step id="GUID-ADD96618-3A97-59A3-9A18-C34B46D36CDF"><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-41E8A873-C810-5C80-95C4-4247CBAA4952"><cmd/>

<info>use <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony::GetCallBarringStatus()</apiname></xref> to

get the supplementary services status information. </info>

<info>pass a <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>TCallBarringCondition</apiname></xref> object. </info>

</step>

<step id="GUID-F7F6B090-1A10-5902-8470-BB1A2A3E6A5E"><cmd/>

<info>cancel the request with <xref href="GUID-97D402C8-B4B7-385A-92B3-D3FCC0CA575A.dita"><apiname>CTelephony::EGetCallBarringStatusCancel</apiname></xref> enumeration. </info>

</step>

</steps>

<example id="GUID-C64CDE2B-344E-5341-88B0-624059E85CE5"><title>Call barring

example</title> <codeblock id="GUID-873ED2A9-3B8F-57F5-8A35-46EBD87350B7" xml:space="preserve">#include &lt;e32base.h&gt;

#include <Etel3rdParty.h>

class CClientApp : public CActive

    { 

private:

    CTelephony* iTelephony;

    CTelephony::TCallBarringSupplServicesV1 iCallBarringSupplServicesV1;

    CTelephony::TCallBarringSupplServicesV1Pckg iCallBarringSupplServicesV1Pckg;

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),

      iCallBarringSupplServicesV1Pckg(iCallBarringSupplServicesV1)

    {

    //default constructor

    }

void CClientApp::SomeFunction()

    {

    CTelephony::TCallBarringCondition condition = CTelephony::EBarAllOutgoing;

    iTelephony->GetCallBarringStatus(iStatus, condition, iCallBarringSupplServicesV1Pckg);

    SetActive();

    }

void CClientApp::RunL()

    {

    if(iStatus==KErrNone)

       {

       if( iCallBarringSupplServicesV1.iCallBarring == CTelephony::EStatusActive )

          {} // The call barring condition is active; 

             // all outgoing calls are barred.

       }

    }

void CClientApp::DoCancel()

    {

    iTelephony->CancelAsync(CTelephony::EGetCallBarringStatusCancel);

    }</codeblock> </example>

</taskbody></task>