# US 10,455,408 B2 · Network use method using virtual SIM and apparatus therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,455,408 B2 - Document ID: US10455408B2 - Status: Granted - Kind: B2 - Application number: 15/609,489 - Filed: 2017-05-31 - Published: 2017-11-30 - Granted: 2019-10-22 - Earliest claimed: 2016-05-31 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Joon Sup Kwak; Chunping Gong; Hyun Do Lee; Jin Koo Kang; Jin Uk Kang; Dong Kyu Kim; Jin Wook Kim; Hyun Jung Baek; Ji Ho Shin; Sung Taek Lee - Web page: https://patentgrep.com/patent/US10455408B2 ## CPC - H04M 15/8038: {Roaming or handoff} - H04M 17/02: Coin-freed or check-freed systems {, e.g. mobile- or card-operated phones, public telephones or booths} - H04W 4/24: Accounting or billing - H04W 4/50: Service provisioning or reconfiguring - H04W 4/60: Subscription-based services using application servers or record carriers, e.g. SIM application toolkits - H04W 8/183: {Processing at user equipment or user record carrier} - H04W 8/205: {Transfer to or from user equipment or user record carrier} - H04W 12/068: {using credential vaults, e.g. password manager applications or one time password [OTP] applications} - H04W 64/00: Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract An electronic device is provided. The electronic device includes a processor configured to execute a roaming application, a communication circuit configured to enable a first subscriber identity module (SIM) and to communicate with a network based on the first SIM, and a memory configured to store data associated with the roaming application. The processor is further configured to, when a roaming service product is selected in the roaming application, download a second SIM corresponding to the roaming service product from a server and enable an activation menu of the roaming service product included in the roaming application, based on location information of the electronic device. ## Claims ### Claim 1 An electronic device, comprising: a processor configured to execute a roaming application; a communication circuit configured to enable a first subscriber identity module (SIM) and to communicate with a network based on the first SIM and to communicate with a plurality of networks based on a third SIM which provides a network service different from the first SIM and a second SIM; and a memory configured to store data associated with the roaming application, wherein the processor is further configured to: download the second SIM corresponding to the roaming service product from a server when a roaming service product is selected in the roaming application, wherein the first SIM is a SIM card and the second SIM is a virtual SIM to be stored in memory of the electronic device after the download; enable an activation menu of the roaming service product included in the roaming application, based on a mobile country code (MCC) obtained by a network search being identical to an MCC included in the second SIM; allow the communication circuit to enable the second SIM if purchase of the roaming service product through the enabled activation menu is completed; allow both the first SIM and the second SIM to be active simultaneously for different functions, so as to allow performance of a voice call based on the first SIM and data communication based on the second SIM; provide a selection screen for the first SIM and the third SIM; control to disable a SIM selected between the first SIM and the third SIM and to enable the second SIM; receive information about at least one of a residual time and residual data usage of the roaming service product from at least one server; and provide a menu for updating or extending the roaming service product in the roaming application if one or more of the residual time or the residual data usage meets a predetermined condition. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the communication circuit further comprises a global positioning system (GPS) signal receiving circuit, and wherein the processor is configured to: determine location information of the electronic device based on a GPS signal received via the GPS signal receiving circuit; and enable the activation menu if the location information corresponds to an MCC included in the second SIM. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein the processor is configured to: store the second SIM in a secure area of the memory. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the communication circuit is configured to: perform the purchase of the roaming service product and authentication of the second SIM by communicating with at least one server previously registered in a whitelist; and enable the second SIM if the authentication of the second SIM is completed. ### Claim 5 (depends on 1) The electronic device of claim 1, wherein the processor is configured to: provide a notification that the roaming service product expires if one or more of the residual time or the residual data usage meets a predetermined condition. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein the processor is configured to: propose the roaming service product based on schedule information. ### Claim 7 (depends on 1) The electronic device of claim 1, wherein the processor is configured to: delete the second SIM if the second SIM is not enabled for a predetermined time.