Don't read callog.

I am use Ex: [url]http://www.developer.nokia.com/Community/Wiki/Logs_Example[/url] read callog.

File header:
[QUOTE]
#include <F32FILE.H>
#include <LOGVIEW.H>
#include <logcli.h>

class MLogCallBack
{
public:
virtual void HandleLogEventL(const CLogEvent& event) = 0;
virtual void LogProcessed(TInt aError) = 0;
};

class CCallLogReader: public CActive
{
enum TCallLogReaderState
{
ECreatingView,
EReadingEntries,
EReadingLast,
Esleep
};

public: // constructors and destructor
static CCallLogReader* NewL(MLogCallBack* aCallBack);
static CCallLogReader* NewLC(MLogCallBack* aCallBack);
~CCallLogReader();

public: // from CActive
void DoCancel();
void RunL();

private: // constructors
CCallLogReader(MLogCallBack* aCallBack);
void ConstructL();
void DoneReadingL(TInt aError);
public:
void ReadEvent();
private: // data
TCallLogReaderState iEngineState;
CLogClient* iLogClient;
CLogViewEvent* iLogView;
CLogViewRecent* iLogRecent;
CLogFilter* iLogFilter;
MLogCallBack* iCallBack;
RFs iFsSession;
};
[/QUOTE]

File .Cpp
[QUOTE]
CCallLogReader* CCallLogReader::NewL(MLogCallBack* aCallBack)
{
CCallLogReader* self = CCallLogReader::NewLC(aCallBack);
CleanupStack::Pop(self);
return self;
}

CCallLogReader* CCallLogReader::NewLC(MLogCallBack* aCallBack)
{
CCallLogReader* self = new (ELeave) CCallLogReader(aCallBack);
CleanupStack::PushL(self);
self->ConstructL();
return self;
}

CCallLogReader::CCallLogReader(MLogCallBack* aCallBack)
:CActive(CActive::EPriorityStandard),iCallBack(aCallBack)
{
}

CCallLogReader::~CCallLogReader()
{
Cancel();
delete iLogView, iLogView = NULL;
delete iLogFilter, iLogFilter = NULL;
delete iLogClient, iLogClient = NULL;
iFsSession.Close();
}

void CCallLogReader::ConstructL(void)
{

User::LeaveIfError(iFsSession.Connect());

iLogClient = CLogClient::NewL(iFsSession);
iLogView = CLogViewEvent::NewL(*iLogClient);
iLogRecent = CLogViewRecent::NewL(*iLogClient);
iLogFilter = CLogFilter::NewL();
iEngineState = Esleep;
CActiveScheduler::Add(this);
}

void CCallLogReader::DoCancel()
{
if(iLogView)
iLogView->Cancel();

if(iLogClient)
iLogClient->Cancel();
}

void CCallLogReader::RunL()
{
switch (iEngineState)
{
case Esleep:
break;

case EReadingEntries:
{
if(iLogView)
{
if (iCallBack)
{
iCallBack->HandleLogEventL(iLogView->Event());
}
else
{
iEngineState = Esleep;
DoneReadingL(KErrNone);
break;
}

if (iLogView->NextL(iStatus))
{
SetActive();
}
else
{
DoneReadingL(KErrNone);
}
}
break;
}
default:
break;
}
}

void CCallLogReader::ReadEvent()
{
if(iLogView->SetFilterL(*iLogFilter, iStatus))
{
iEngineState = EReadingEntries;
SetActive();
}
else
{
DoneReadingL(KErrNone);
}
}

void CCallLogReader::DoneReadingL(TInt aError)
{
iCallBack->LogProcessed(aError);
}
[/QUOTE]

in My Class , i am call:

[QUOTE]
iCallLog = CCallLogReader::NewL(this);
iCallLog->ReadEvent();
[/QUOTE]

[QUOTE]
void MuClassView::HandleLogEventL(const CLogEvent& event)
{
TBuf<20> Number, Direction, Name;
TLogDuration Duration;
TTime aTime;

Number.Copy(event.Number());
Name.Copy(event.Description());
Direction.Copy(event.Direction());
Duration = event.Duration();
aTime = event.Time();

RFile file;
TBuf8<100> buf;
/* Open a file if it exists, otherwise create new one*/
if (KErrNone != file.Open(CCoeEnv::Static()->FsSession(), _L("E:\\CallLog.txt"), EFileWrite))
{
file.Replace(CCoeEnv::Static()->FsSession(), _L("E:\\CallLog.txt"), EFileWrite);
}

TInt pos = 0;
file.Seek(ESeekEnd, pos);

file.Write(_L8("\n\nName : "));
buf.Copy(Name);
file.Write(buf);

file.Write(_L8("\nNumber : "));
buf.Copy(Number);
file.Write(buf);

file.Write(_L8("\nDirection : "));
buf.Copy(Direction);
file.Write(buf);

file.Write(_L8("\nTime : "));

TBuf<50> dateString;
_LIT(KDateString3,"%D%M%Y%/0%1%/1%2%/2%3%/3");
aTime.FormatL(dateString,KDateString3);
buf.Copy(dateString);
buf.Append(_L(" - "));
_LIT(KDateString5,"%-B%:0%J%:1%T%:2%S%:3%+B");
aTime.FormatL(dateString,KDateString5);
buf.Append(dateString);
file.Write(buf);

file.Write(_L8("\nDuration : "));
buf.Num(Duration);
file.Write(buf);
file.Close();

}
[/QUOTE]

but I only get results by WLAN connection.
Can anyone help me! Thanks!