COMMUNICATION SYSTEM MAKING BATTERY REPLACEMENT OR USE OF PORTABLE CHARGER UNNECESSARY WHEN BATTERY IS EXHAUSTED USING MOBILE PHONE OR SMART PHONE INTO WHICH MULTIPLE ASSOCIATED SIM CARDS ARE INSERTED

摘要

PROBLEM TO BE SOLVED: To provide a method of making a mobile phone or smart phone usable when the mobile phone or smart phone runs out of its battery without copying various files to another mobile phone or smart phone.;SOLUTION: A communication system inputs multiple pieces of SIM card information associated with a mobile phone company, allocates the same telephone number to mobile phones or smart phones into which a plurality of associated SIM cards are inserted, stores all files such as emails and any homepage address in a server of the mobile phone company, and uses them by downloading them on a browser. Each of the mobile phones or smart phones is made usable only when it inputs a password number or uses biometric authentication at the last.;SELECTED DRAWING: None;COPYRIGHT: (C)2017,JPO&INPIT