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    SIM card - IMSI used?

    Network & Coverage
    imei imsi block sim
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    • L
      Lauwie007 last edited by

      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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      • afzal_m
        afzal_m iotcreators.com team last edited by

        Good question!

        If you remove an IMEI number the sim-card will keep the possibility to attach to the mobile network. However

        • the network will not process the device data because the IMEI is not registered

        • 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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        • Jeroen van Bussel
          Jeroen van Bussel last edited by

          Thanks Afzal,

          Do I understand correct that if you have an account only the registered IMEIs are costs-charged? So e.g. :

          • Somebody steals my SIM cards,

          • I deregister the related IMEIs in our account and we are no longer charged once deregistered

          • 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?

          1 Reply Last reply Reply Quote 1
          • afzal_m
            afzal_m iotcreators.com team last edited by

            Yeap!

            The thief can only re-use the sim-card when he registeres his own IMEI number and used the sim with his IMEI.

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