| 摘要 |
For security purposes, a limited profile SIM, card which preferably does not permit voice communications is provided. For example, the card might support only SMS-type communications. During installation, when the SIM card is initially inserted, or installed in a respective product, a smart phone, table or laptop computer for example, the SIM card pairs with, or becomes bonded to, the product. That card cannot be used subsequently with any other gsm-type module. Responsive to the evaluation at the server, the server transmits a request to operator services for a selected network, for example a GSM 3G or 4G cellular-type communications network. This request can include information as to the SIM card, product and end user for the network along with a request that the profile of the SIM card be modified to include any and all services to be provided, such as voice and/or data. The end user information can be stored in a communications system data base. |
