SIM card - IMSI used?
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Hello,
We are using a number of test SIM cards and noticed that IMEI is leading (we expected the IMSI to be leading).
Now we are still in a test phase and it is not that important, however we are looking at live deployments as well.For real customers
How do we block a customer? Using the IMEI only disables the device itself and does not disable the SIM card and its connectivity. So how does it work within TMO?Thanks
Laurens -
Good question!
If you remove an IMEI number the sim-card will keep the possibility to attach to the mobile network. However
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the network will not process the device data because the IMEI is not registered
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there will be no cost-charging for it, because we only charge based on registered IMEI’s
So removing an IMEI is the only thing you need to do to ‘block’ a connection.
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Thanks Afzal,
Do I understand correct that if you have an account only the registered IMEIs are costs-charged? So e.g. :
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Somebody steals my SIM cards,
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I deregister the related IMEIs in our account and we are no longer charged once deregistered
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The thiefs could re-use the SIM card in their own TMO account and be charged for usage :-)
(and in the end we only need to get some new SIMs?)
Is that how it works?
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Yeap!
The thief can only re-use the sim-card when he registeres his own IMEI number and used the sim with his IMEI.
