Reading IMEI in 3rd Edition

Comments

05 Sep
2009

Article Review by kamalakshan (20090905)

IMEI number being unique is mostly used for licensing and billing. The example code provided in this article provides information on how to retrieve the IMEI number from your phone in 3rd Edition. Very useful and easy for any beginner to implement.

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07 Sep
2009

Article Review by User:FireSwarog (20090907)

From time to time it is necessary to use special unique value, associated with the current device (for example while generating activation key for your application). The device IMEI is a best choice in such situation.

This article demonstrates how to read the device IMEI in S60 3rd Edition. The realization is based on two idioms: active objects and observer pattern. Combination of these approaches is very popular in Symbian C++. The example of the class, demonstrated in the article is fully self-contained. You could just copy it in your own project.

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Article Metadata

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Platform Security

Signing Required: Self-Signed

Capabilities: None

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Article

Created: symbianyucca (20 Mar 2007)

Last edited: hamishwillee (08 May 2013)

CImeiReader example illustrates how to read IMEI (which is an identification number that is unique for each mobile phone) in 3rd Edition Symbian devices. When this code is run on emulator it gives IMEI as "0000000000000", so better to test it on real device.

Library Needed:

LIBRARY  etel3rdParty.lib

Capability required:

CAPABILITY None

NOTE: There has been some mixed information regarding the need of "ReadDeviceData" capability for reading IMEI. That capability is not required to read IMEI, but instead is needed for reading IMSI.

IMEI_Getter.cpp

#include "IMEI_Getter.h"
 
CImeiReader* CImeiReader::NewL(MImeiObserver* aObserver)
{
    CImeiReader* self = NewLC(aObserver);
    CleanupStack::Pop(self);
    return self;
}
 
CImeiReader* CImeiReader::NewLC(MImeiObserver* aObserver)
{
    CImeiReader* self = new (ELeave) CImeiReader(aObserver);
    CleanupStack::PushL(self);
    self->ConstructL();
    return self;
}
 
 
CImeiReader::CImeiReader(MImeiObserver* aObserver)
:CActive(EPriorityStandard), iObserver(aObserver), iIdV1Pkg(iIdV1)
{
}
 
CImeiReader::~CImeiReader()
{
    Cancel();
    delete iTelephony;	
}
 
void CImeiReader::ConstructL(void)
{	
    CActiveScheduler::Add(this);
 
    iTelephony = CTelephony::NewL();
    iTelephony->GetPhoneId(iStatus,iIdV1Pkg);
    SetActive();	
}
 
void CImeiReader::DoCancel()
{
    iTelephony->CancelAsync(CTelephony::EGetPhoneIdCancel);
}
 
void CImeiReader::RunL()
{
    iObserver->GotIMEIL(iIdV1.iSerialNumber,iStatus.Int());
}

IMEI_Getter.h

#include <Etel3rdParty.h>
 
 
class MImeiObserver
{
    public:	
        virtual void GotIMEIL(const TDesC& aIMEI,TInt aError) = 0;
};
 
class CImeiReader : public CActive
{
    public:
        static CImeiReader* NewL(MImeiObserver* aObserver);
        static CImeiReader* NewLC(MImeiObserver* aObserver);
        ~CImeiReader();
 
    protected:	
        void DoCancel();
        void RunL();
 
    private:
        CImeiReader(MImeiObserver* aObserver);
        void ConstructL(void);
 
    private:
        MImeiObserver* 	iObserver;
        CTelephony* iTelephony;
        CTelephony::TPhoneIdV1 	iIdV1;    
        CTelephony::TPhoneIdV1Pckg iIdV1Pkg;
};

See Also

• Reading IMEI in 3rd edition -Synchronously
• IMEI on Wikipedia
• Online tool to analyze IMEI

• 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.