| 摘要 |
The present invention provides a method for switching between multiple SIM cards within a telephone. The method comprises the steps of storing a plurality of internal ID codes, each of which identifies a direct service provider of one of the SIM cards, receiving an ID code identifying one of the service providers, comparing the received ID code to each of the internal ID codes, and switching to one of the SIM cards when the service provider identified by the received ID code is recognized as the direct one of the SIM card switched to, identified by the corresponding internal ID code.
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