Method and apparatus for implementing mobile phone call charging function
A billing function and mobile phone technology, applied in the field of mobile communication, to achieve the effect of saving storage resources and processor resources
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[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] The present invention provides a method and device for realizing the billing function of mobile phone calls, referring to figure 1 , mainly include: at first increase a call billing data file (record module) 101 in the SIM card, be used to preserve the balance of the call charge, and increase the program (operation module) 102 of billing processing in the SIM card code, mainly used for according to the mobile phone Return the call time and call status to modify the credit balance in the card, and notify the mobile phone to connect or hang up the current call according to the credit balance; add an independent task on the mobile phone side to pass the current call status parameters to the SIM during the call After the SIM card receives these ...
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