Categories: Symbian C++ | Code Examples | Telephony

From Forum Nokia Wiki

This code example will help you in getting different Network Parameters like: Cell Id, Network Id, Country ID and Network Name.

NetworkApp.h

#include <e32base.h>
#include <Etel3rdParty.h>
 
class CNetworkApp : public CActive
{
 
private:
        void ConstructL();
        CTelephony* iTelephony;
        CTelephony::TNetworkInfoV1 iNetworkInfoV1;
        CTelephony::TNetworkInfoV1Pckg iNetworkInfoV1Pckg;
 
public:
        CNetworkApp(
                TUint& CellId, TDes& NetworkId, TDes& CountryId, TDes& LongName);
        static void GetNetworkParameters(
                TUint& CellId, TDes& NetworkId, TDes& CountryId, TDes& LongName);
        ~CNetworkApp();
        TUint& iCellID;
        TDes&  iNetworkID;
        TDes&  iCountryCODE;
        TDes&  iLongNAME;
 
private:
        /*
           These are the pure virtual methods from CActive that
           MUST be implemented by all active objects
         */
        void RunL();
        void DoCancel();
};

NetworkApp.cpp

#include "NetworkApp.h"
 
void CNetworkApp::GetNetworkParameters(
        TUint& aCellID, TDes& aNetworkID, TDes& aCountryCODE,
        TDes& aLongName)
{
        CNetworkApp* self=
                new(ELeave) CNetworkApp(
                        aCellID, aNetworkID, aCountryCODE, aLongName);
        CleanupStack::PushL(self);
        self->ConstructL();
        CleanupStack::PopAndDestroy(self);
}
 
void CNetworkApp::ConstructL()
{
        iTelephony = CTelephony::NewL();
        CActiveScheduler::Add(this);        
 
        iTelephony->GetCurrentNetworkInfo(iStatus, iNetworkInfoV1Pckg);
        SetActive();
        CActiveScheduler::Start();
 
}
 
CNetworkApp::CNetworkApp(
        TUint& aCellID,TDes& aNetworkID,TDes& aCountryCODE,TDes& aLongName):
                CActive(EPriorityStandard), iNetworkInfoV1Pckg(iNetworkInfoV1),
                iCellID(aCellID), iNetworkID(aNetworkID), iCountryCODE(aCountryCODE),
                iLongNAME(aLongName)
{
        //default constructor
}
 
void CNetworkApp::RunL()
{
        if(iStatus==KErrNone)
        {
                iCellID = iNetworkInfoV1.iCellId;
                iNetworkID = iNetworkInfoV1.iNetworkId;
                iCountryCODE = iNetworkInfoV1.iCountryCode;
                iLongNAME= iNetworkInfoV1.iLongName;
                CActiveScheduler::Stop();
        }
}
 
void CNetworkApp::DoCancel()
{
        iTelephony->CancelAsync(CTelephony::EGetCurrentNetworkInfoCancel);
}
 
CNetworkApp::~CNetworkApp()
{
        if(iTelephony)
        {
                iTelephony->Cancel();
                delete iTelephony;
                iTelephony = NULL;
        }
}

Instructions

Now do the following steps:
1) Create a sample "Hello World" type application.
2) Put NetworkApp.h file in your application's "inc" folder.
3) Put NetworkApp.cpp file in your application's "src" folder.
4) Open .mmp file and add entry SOURCE NetworkApp.cpp.
5) Open .mmp file and add entry LIBRARY etel3rdparty.lib.
7) Now you need to include following header in your class to read Network:
#include "NetworkApp.h". Let's say in for e.g.: "CYrAppUi.h"
8) You can then call the static function from any of your Commands.
For ex: in your CYrAppUi.h you need to include "NetworkApp.h"
And Call it like:

case EReadNetworkCommand1:
{
        TUint CellId;
        TBuf<30> NetworkId;
        TBuf<30> CountryId;
        TBuf<30> OperatorLongName;        
        CNetworkApp::GetNetworkParameters(
                CellId, NetworkId, CountryId, OperatorLongName );
 
        TBuf<160> iDisplayString;
        iDisplayString.Format(
                _L( "CellId-%d\nNetworkID-%S\nCountryID-%S\nNETWORK-%S" ),
                 CellId, &NetworkId, &CountryId, &OperatorLongName );
 
        CAknInformationNote* informationNote = new ( ELeave )
                CAknInformationNote;
        informationNote->ExecuteLD(iDisplayString);
}

9) Open .mmp file and add entry CAPABILITY ReadDeviceData.
10) You need to sign resulted .Sis file with your developer certificate to get it installed on your phone.

You can find a working application which is built in MS 2003 IDE with Carbide.vs Support. Here it goes: Network Information
Here is a library with similar functionality but for S60 2nd edition SDKs.

Related Links

• DevInfo - Get the IMEI, IMSI, CellId etc., synchronously on 3.x devices.