# US 8,787,879 B2 · Multiple SIM card secure global mobile device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,787,879 B2 - Document ID: US8787879B2 - Status: Granted - Kind: B2 - Application number: 13/675,960 - Filed: 2012-11-13 - Published: 2014-05-01 - Granted: 2014-07-22 - Earliest claimed: 2011-11-12 - Applicants: Isaac S. Daniel - Inventors: Isaac S. Daniel - Web page: https://patentgrep.com/patent/US8787879B2 ## CPC - H04W 8/205: {Transfer to or from user equipment or user record carrier} - H04W 8/12: between location registers or mobility servers - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present invention is directed to electronic and global communication systems, devices, and methods resulting from the realization that global usage of mobile phones may be made easier and more secure by providing a system and method which have multiple subscriber identification modules (SIMs) cards including domestic and international SIM cards that enable businessmen, politicians and others to stay connected with their co-workers when traveling abroad by receiving calls and emails without paying high roaming and international fees. ## Claims ### Claim 1 A system comprising: a. at least one processor; b. at least one communications means electronically connected to the at least one processor, wherein said at least one communications means is operative to connect to a wireless communications network; c. at least one means for accepting at least two subscriber identification modules; and d. computer executable instructions readable by the at least one processor, and operative to: i. determine whether at least one local subscriber identification module and at least one global subscriber identification module are present in the at least one means for accepting at least two subscriber identification modules, wherein the at least one local subscriber identification module is assigned to a traditional phone number and the at least one global subscriber identification module is assigned to a unique global phone number; ii. receive or transmit communications to or from the traditional phone number and the unique global phone number if both the at least one local subscriber identification module and the at least one global subscriber identification module are present in the at least one means for accepting at least two subscriber identification modules; and iii. prevent any communications to or from the unique global phone number if the at least one local subscriber identification module is not present in the at least one means for accepting at least two subscriber identification modules. ### Claim 2 (depends on 1) The system of claim 1, wherein the at least one processor is part of or integrated into a mobile communications device. ### Claim 3 (depends on 2) The system of claim 2, wherein the mobile communications device is a mobile phone. ### Claim 4 (depends on 1) The system of claim 1, wherein the computer executable instructions are stored, in whole or in part, locally. ### Claim 5 (depends on 1) The system of claim 1, wherein the computer executable instructions are stored, in whole or in part, remotely. ### Claim 6 (depends on 5) The system of claim 5, wherein the computer executable instructions are remotely stored, in whole or in part, in a central station. ### Claim 7 (depends on 1) The system of claim 1, wherein the computer executable instructions comprise a downloadable application. ### Claim 8 A method comprising: a. using at least one processor to perform any or all of the following steps: i. determining whether at least one local subscriber identification module and at least one global subscriber identification module are present in at least one means for accepting at least two subscriber identification modules, wherein the at least one local subscriber identification module is assigned to a traditional phone number and the at least one global subscriber identification module is assigned to a unique global phone number; ii. using at least one communications means to receive or transmit communications to or from the traditional phone number and the unique global phone number if both the at least one local subscriber identification module and the at least one global subscriber identification module are present in the at least one means for accepting at least two subscriber identification modules; and iii. preventing any communications to or from the unique global phone number if the at least one local subscriber identification module is not present in the at least one means for accepting at least two subscriber identification modules. ### Claim 9 (depends on 8) The method of claim 8, wherein the at least one processor is part of or integrated into a mobile communications device. ### Claim 10 (depends on 9) The method of claim 9, wherein the mobile communications device is a mobile phone. ### Claim 11 (depends on 8) The method of claim 8, wherein using at least one processor comprises using computer executable instructions readable by the at least one processor. ### Claim 12 (depends on 11) The method of claim 11, wherein the computer executable instructions are stored, in whole or in part, remotely or locally. ### Claim 13 (depends on 11) The system of claim 11, wherein the computer executable instructions are remotely stored, in whole or in part, in a central station. ### Claim 14 (depends on 11) The system of claim 11, wherein the computer executable instructions comprise a downloadable application. ### Claim 15 (depends on 11) The system of claim 11, further comprising allowing at least one user to download a set of computer executable instructions readable by the at least one processor. ### Claim 16 (depends on 11) The system of claim 11, further comprising providing at least one user with the least one global subscriber identification module, or the at least one local subscriber identification module. ### Claim 17 A non-transitory computer readable medium comprising: a. computer executable instructions readable by at least one processor and operative to perform any or all of the following steps or functions: i. determining whether at least one local subscriber identification module and at least one global subscriber identification module are present in at least one means for accepting at least two subscriber identification modules, wherein the at least one local subscriber identification module is assigned to a traditional phone number and the at least one global subscriber identification module is assigned to a unique global phone number; ii. using at least one communications means to receive or transmit communications to or from the traditional phone number and the unique global phone number if both the at least one local subscriber identification module and the at least one global subscriber identification module are present in the at least one means for accepting at least two subscriber identification modules; and iii. preventing any communications to or from the unique global phone number if the at least one local subscriber identification module is not present in the at least one means for accepting at least two subscriber identification modules. ### Claim 18 (depends on 17) The method of claim 17, wherein the at least one processor is part of or integrated into a mobile communications device. ### Claim 19 (depends on 18) The method of claim 18, wherein the mobile communications device is a mobile phone. ### Claim 20 (depends on 17) The method of claim 17, wherein the computer executable instructions are stored, in whole or in part, remotely or locally.