<?xml version="1.0" encoding="utf-8"?>
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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 &lt;Etel3rdParty.h&gt;

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-&gt;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-&gt;CancelAsync(CTelephony::EGetCallBarringStatusCancel);
    }</codeblock> </example>
</taskbody></task>