Communication device and method for switching phone numbers using the same
AssigneesShenzhen Futaihong Precision Industry Co., Ltd., Chi Mei Communication Systems, Inc.
InventorFei Huang
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Abstract
In a method of switching between phone numbers of a communication device, a Subscriber Identity Module (SIM) card of the communication device receives Location Area Identity (LAI) information. Upon receiving the LAI information, the SIM card determines whether a Mobile Country Code (MCC) of the LAI information is consistent with an MCC of International Mobile Subscriber Identity (IMSI) of an activated phone number. The communication device switches an inactivated phone number to be activated when the MCC of the LAI information is inconsistent with the MCC of the activated phone number.
Claims15
A communication device, comprising:
- a Subscriber Identity Module (SIM) card comprising a central processing unit (CPU) and a first storage device, the first storage device storing a first phone number and a second phone number of the SIM card;
- and
- one or more programs that are stored in the first storage device and are executed by the CPU of the SIM card, the one or more programs comprising:
- a receiving module that receives Location Area Identity (LAI) information from the Global System for Mobile communication (GSM) network;
- a determination module that determines whether a Mobile Country Code (MCC) of the LAI information is consistent with an MCC of an International Mobile Subscriber Identity (IMSI) of the first phone number of the SIM card, the first phone number being activated while the second phone number being inactivated;
- and
- a switching module that activates the second phone number when the MCC of the LAI information is inconsistent with the MCC of IMSI of the first phone number.
A method for switching phone numbers of a communication device, the method comprising:
- receiving, at the communication device, Location Area Identity (LAI) information from the Global System for Mobile communication (GSM) network, wherein the communication device having a SIM card, the SIM card can be switched between a first phone number and a second phone number;
- determining, at the communication device, whether a Mobile Country Code (MCC) of the LAI information is consistent with an MCC of an International Mobile Subscriber Identity (IMSI) of the first phone number of the Subscriber Identity Module (SIM) card, the first phone number being activated while the second phone number being inactivated;
- and
- activating, at the communication device, the second phone number when the MCC of the LAI information is inconsistent with the MCC of IMSI of the first phone number.
A non-transitory storage medium having stored thereon instructions that, when executed by a central processing unit (CPU) of a communication device having a Subscriber Identity Module (SIM) card, causes the communication device to perform a method for switching the communication device between a first phone number and a second phone number, the method comprising:
- receiving Location Area Identity (LAI) information from the Global System for Mobile communication (GSM) network;
- determining whether a Mobile Country Code (MCC) of the LAI information is consistent with an MCC of an International Mobile Subscriber Identity (IMSI) of the first phone number of the SIM card, the first phone number being activated while the second phone number being inactivated;
- and
- activating the second phone number when the MCC of the LAI information is inconsistent with the MCC of IMSI of the first phone number.
Dependencies are inferred from the claim text.