Method and device for clearing information of contact person, and communication terminal

Abstract

The invention is suitable for the technical field of communication and provides a method and a device for clearing information of a contact person, and a communication terminal. The method comprises the following steps of: when a calling party communication terminal transmits application to the phone number of the contact person but the phone number of the contact person cannot receive the application, recording hint information fed back by a mobile switching center, wherein the hint information comprises the current state of the phone number of the contact person; resolving the hint information to extract the current state of the phone number of the contact person, wherein the current state comprises an out-of-service state, an overdue state, a power-off state and a normal state; and when the phone number of the contact person is out of service or overdue, deleting the information of the contact person corresponding to the phone number of the contact person. According to the method, the device and the mobile terminal, the contact person can be cleared, a useless phone number can be deleted and resources can be saved, particularly for a small-volume subscriber identity module (SIM) card.

Description

Technical field [0001] The invention belongs to the field of communication technology, and in particular relates to a method, a device and a communication terminal for clearing contact information. Background technique [0002] At present, when calling a contact stored in the SIM card or communication terminal, if the contact changes the phone number, the communication terminal will prompt the user "The number you dialed has expired" and "The number you dialed is empty" and many more. When the call ends, the information of the called contact including the phone number is still stored in the SIM card / or communication terminal. [0003] However, an ordinary SIM card can only store about 250 contact information, and the communication terminal can generally only store 1000 or more contact information. Regarding the storage method of the SIM card, the capacity of the SIM card is very likely to be full; In addition, some phone numbers that are not frequently contacted may be shut down ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method for clearing contact information, which aims to solve the problem of long-term storage of contact information including expired phone numbers in the prior art, which may easily cause the capacity of the SIM card or communication terminal to be full and waste resources.

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