Abstract: The invention relates to the technical field of mobile terminal technology and discloses a method and system for inquiring position information of a mobile terminal. The mobile terminal receives a position inquiry request input by a user, creates a first short message according to the position inquiry request, and sends the first short message and an ID of the mobile terminal to a server, where the message header of the first short message has a corresponding code that is used for identifying the position inquiry request. The server interprets the first short message to obtain the position inquiry request, obtains the position information of the mobile terminal according to the ID of the mobile terminal, creates a second short message according to the obtained position information, and returns the second short message to the mobile terminal, where the second short message contains the position information in a system-defined format.

Abstract: This invention provides a mobile communication terminal and a message automatic cleaning method thereof. The mobile communication terminal comprises a user interface unit, a man machine interface and a message module interface, a cleaning management unit, a timing trigger unit and a rule judgment unit. The message automatic cleaning method of the mobile communication terminal comprises the following steps: step a, setting message directory automatic cleaning frequencies and rules in a rule judgment unit; step b, setting a waiting period of a timing trigger unit; step c, judging whether current information accords with the cleaning rule when the set waiting period ends, and deleting the message if the information accords with the rule.

Abstract: The invention relates to the technical field of mobile terminal technology and discloses a method and system for inquiring position information of a mobile terminal. The mobile terminal receives a position inquiry request input s by a user, creates a first short message according to the position inquiry request, and sends the first short message and an ID of the mobile terminal to a server, where the message header of the first short message has a corresponding code that is used for identifying the position inquiry request. The server interprets the first short message to obtain the position inquiry request, obtains the position information of the mobile terminal according to the ID of the mobile terminal, creates a second short message according to the obtained position information, and returns the second short message to the mobile terminal, where the second short message contains the position information in a system-defined format.

Abstract: This invention provides a mobile communication terminal and a message automatic cleaning method thereof. The mobile communication terminal comprises a user interface unit, a man machine interface and a message module interface, a cleaning management unit, a timing trigger unit and a rule judgment unit. The message automatic cleaning method of the mobile communication terminal comprises the following steps: step a, setting message directory automatic cleaning frequencies and rules in a rule judgment unit; step b, setting a waiting period of a timing trigger unit; step c, judging whether current information accords with the cleaning rule when the set waiting period ends, and deleting the message if the information accords with the rule.