Hey ppl,
Im a new kid in programming for pocket PCs.. I use Visual Basic .net 2003.
Does a SIM contain any unique id..? Like IMEI for devices, does SIM card have any..? if yes , can u pls provide me an example solution file to read it..?
I read in msdn for reading SIM' phone number and service provider.. But the download sample was like an installation msi file as usual and after downloading that, it gave me a solution project which i already did..I tink something rong wit my PC..
If u cant make the example solution, can u atleast try opening this download sample in the link and send me the VB part alone zipped pls....?
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetcomp/html/netcfphoneapi.asp
Carty: I'm not sure if the SIM contains a unique identifier record, but it will generally hold the phone's telephone number of course. That should be fairly unique!
There is code somewhere on the board I think for reading sim records as an alternative way of recovering SIM SMSs. I imagine the same idea could be used to check for unique ID. But although possible, I don't know if it'd be more helpful then the easy to read telephone number.
V
String is not set
Vijay tanx for yr reply....
I finally made out tat sample to give me the correct project but now the simnumber is not showing up..
Actually in the form load event
'Blah = newSim.GetServiceProvider()
newSim.GetPhoneNumber()
the above was given and i added the line
msgbox(newSim.GetServiceProvider()) and it showed me the service provider
but the same i cldn do for
msgbox(newSim.Getphonenumber())
as it gives the error: Value type netcf.phoneaddress cannot be set to string. in the debug window
The code for getting those numbers are riten on different class called sms.vb
can u pls help me out wit that..
will this line
newSim.GetPhoneNumber()
alone, wld it notify with a number? im nt gettig any..can u download tat sample and test it? Pls help me..?
I'm afraid I have no experience with .net, but this is something that confused me for a long time. If there's no telephone number registered in the SIM, it won't collect it.
Read this:
http://www.wivit.com/products/FAQ_SSS.shtm
V
Every sim card has a unique ID, its used to identify the sim card on the network and is used when the phone is in use, because as you say not all sims have phone numbers. This would be ideal for your project, which by the way I would be very interested in. The bad news is that I have never done any programming for .Net CF so I don't know how you would accomplish that.
Hope I have been of some help.
Tats wot i need
SIM should contain a unique ID as argon says... Its the way the operator recognizes the SIM..
Anyone frm anywer cld pls help me out to read that unique ID from SIM card with VB.net.. I have no knowledge in C#
Lookin for replies...Tanx in advance..
Hi
Cant help you with the programming but the sim will not contain a phone number but will contain 2 separate numbers.
IMSI number, International Mobile Subscriber Identifier, unique number up to 15 digits long. the first few digits identify the country of issue and the next the network the fianal digits are the serial number for the network issuing the sim. When the phone makes a call to the BTS this data is sent using the COMP128 algorithm. This is vital as the both the Ki (personal encryption key) and the IMSI are used as a pair to authenticate the sim on the BTS.
It is believed that COMP128 was hacked some years ago but the industry has so far kept quiet about this and has not replaced the encryption system due to cost. But basically anyone with access to the hacked COMP128 algorithm can scan the IMSI and Ki and clone your sim.
Sorry for the Ramble, but the point here is there may be a breach of licence and copywrite if you attempt to read these details from the sim. As it could be argued that you were attempting to "clone" sim cards, which in most countries is a criminal offence.
Also beware about assisting people on this forum who are seeking help on this matter as there are a few virus writers who are rumoured to be compiling a worm like virus to read this detail from sims on windows mobile platforms and use these IMSI Ki pairs to commit major telecoms fraud. Basically they send the worm out there and it harvests the data and sends it back to them.
With this data they can create duplicates of your sim card and install these in GSM gws. These are then used to call expensive international numbers in large production enviroments using 100's of sims running 24 hours per day. These calls are them sold to large telecoms companies netting these people $10,000's per day.
Be careful guys.
Regards
Charlie
I din know that!!
Hey charlie, tanx for yr reply.. I did get something i never knew..
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Hey, Im developing a web app with java servlets that can access an oracle database through the tomcat server. I am also developing an android app that I want to use to be able to display the information that is stored on this database.
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Thanks a mill
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