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
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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.
