Method and system for realizing global free roaming based on Bluetooth devices
A bluetooth device and bluetooth technology, applied in branch office equipment, short-distance communication service, telephone communication, etc., can solve the problem of expensive international charges
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[0065] The present invention will be further described below in conjunction with the drawings.
[0066] In the method and system for realizing global free roaming based on Bluetooth devices of the present invention, the Bluetooth devices adopted by it are divided into Bluetooth SIM cards and Bluetooth smart devices.
[0067] Such as figure 1 Shown is the internal schematic diagram of the customized Bluetooth SIM card of the present invention; the main difference between the Bluetooth SIM card and the ordinary SIM is that the Bluetooth SIM card has a built-in Bluetooth system, and the 7816 protocol for metal contacts is transmitted to the SIM through the Bluetooth control chip. The COS system can also be forwarded directly through the 2.4G Bluetooth radio frequency through the Bluetooth chip. In this way, Bluetooth supports two sets of interfaces, one is a physical contact interface, and the other is a Bluetooth wireless interface. At the same time, the COS system of the Bluetooth ...
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