Reading IMSI in 3rd Edition

Comments

05 Sep
2009

Article Review by kamalakshan (20090905)

The IMSI number is used to identify the SIM card. Tracking this card number will help you track - say any SIM change event. This code example nicely illustrates the use of CTelephony API to retrieve the IMSI number from the SIM card.

Chen2011 -

For double SIM cards, how can get IMSI information of a SIM card ?

chen2011 12:42, 27 March 2012 (EEST)

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Article Metadata

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Tested with

Devices(s): E61i

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Compatibility

Platform(s): S60 3rd Edition

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Platform Security

Signing Required: DevCert

Capabilities: ReadDeviceData

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Article

Keywords: CTelephony::GetSubscriberId()

Created: symbianyucca (20 Mar 2007)

Last edited: hamishwillee (11 Jan 2012)

CImsiReader example illustrates how to read IMSI (SIM card's identity number, which has nearly nothing to do with the MSISDN that is the phone number used for calling) in 3rd Edition Symbian devices. Note that this code will most likely not work in the emulator, thus you should only use it in real devices.

Link against:

etel3rdparty.lib

Capability require:

CAPABILITY  ReadDeviceData

IMSI_Getter.cpp

#include "Imsi_Getter.h"  //LP: added #include for Imsi_Getter.h header file
 
CImsiReader* CImsiReader::NewL(MImsiObserver* aObserver)
    {
    CImsiReader* self = NewLC(aObserver);
    CleanupStack::Pop(self);
    return self;
    }
 
 
CImsiReader* CImsiReader::NewLC(MImsiObserver* aObserver)
    {
    CImsiReader* self = new (ELeave) CImsiReader(aObserver);
    CleanupStack::PushL(self);
    self->ConstructL();
    return self;
    }
 
 
CImsiReader::CImsiReader(MImsiObserver* aObserver)
:CActive(0),iObserver(aObserver),iImsiV1Pkg(iImsiV1)
{
}
 
CImsiReader::~CImsiReader()
{
	Cancel();
	delete iTelephony;
 
}
 
void CImsiReader::ConstructL(void)
{	
	CActiveScheduler::Add(this);
 
	iTelephony = CTelephony::NewL();
	iTelephony->GetSubscriberId(iStatus,iImsiV1Pkg);
	SetActive();
}
 
void CImsiReader::DoCancel()
{
	iTelephony->CancelAsync(CTelephony::EGetSubscriberIdCancel);
}
 
 
void CImsiReader::RunL()
{
        //LP: added ";" and replaced iTelephony with iObserver
	iObserver->GotIMSIL(iImsiV1.iSubscriberId,iStatus.Int());
}

IMSI_Getter.h

#include <Etel3rdParty.h>
	class MImsiObserver
	{
	public:	//	New methods
		virtual void GotIMSIL(const TDesC& aIMSI, TInt aError) = 0;
	};
 
	class CImsiReader : public CActive
	    {
 
	public:
		static CImsiReader* NewL(MImsiObserver* aObserver);
		static CImsiReader* NewLC(MImsiObserver* aObserver);
		~CImsiReader();
	protected:	
		void DoCancel();
		void RunL();
	private:
		CImsiReader(MImsiObserver* aObserver);
	    void ConstructL(void);
	private:
		MImsiObserver* 					iObserver;
		CTelephony* 					iTelephony;
		CTelephony::TSubscriberIdV1 	iImsiV1;    
    	CTelephony::TSubscriberIdV1Pckg iImsiV1Pkg;
	    };

Example Code

• Example Code 1
• Example code 2

See Also

• Reading IMSI in 3rd edition -Synchronously
• IMSI on Wikipedia
• Online tool to analyze IMSI
• Get the IMEI, IMSI, CellId etc., synchronously on 3.x devices (Blog no longer available, content reproduced below:)

[show details]

In this blog entry I would like to share a small utility class, which is nothing but to find the Phone/Network/Subscriber related information in a synchronous way. In Forum Nokia Technical Library there is already a tip for finding the IMEI number in synchronously, you can find it here. I've just used that approach here to find these details: Phone information: manufacturer, model and serial number (IMEI). You've to basically use the CTelephony::GetPhoneId() API to get these information. Network information: cell id, location area code, country code etc. (this can be extended, check the SDK Help of CTelephony for that). With CTelephony::GetCurrentNetworkInfo() API you can gather the network related information. Notice here you need a ReadDeviceData capability for accessing this function. Subscriber information: subscriber id (IMSI).

The CTelephony::GetSubscriberId() API will help you retrieve this information. All the above functions are not synchronous so to make it synchronous the work-around is the use of CActiveSchedulerWait. After the call of these asynchronous and SetActive() you have to call a iActiveSchedulerWait->Start() and in your RunL() you have to check whether the iActiveSchedulerWait is already started with iActiveSchedulerWait->IsStarted() if then stop by iActiveSchedulerWait->Stop(), then fetch the information.

Get to know more about this please refer this example: DevInfo_3.x. Please check my comments below for more clarity. EDIT: Changed the article name (previously it was Get the IMEI of a 3.x device) and added a more elaborated and extended example.