A SMS closed user group business system and the corresponding realization method

Abstract

The invention relates to a system for text message closed user group service, which comprises a text message center and a text message closed user group service device. The text message closed user group service device utilizes a value-added port of the text message center to be connected with the text message center. The text message center comprises a transmit module used for transmitting all calling and called text messages of users of the text message closed user group from the text message center to the text message closed user group service device; the text message closed user group service device comprises that an opening module is used for opening the text message closed user group service for the users of the text message closed user group through the value-added port of the text message center; a filter module is used for returning the text messages that are arranged in line with deliver conditions to the text message center, or intercepting the text messages. By adopting the system of the invention, the problems that external point-to-point text messages can not be intercepted and the hidden trouble exists in ESME source text messages are solved; meanwhile, the system saves number resources and can flexibly respond to the requirement of the users.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a short message closed user group service system and an implementation method thereof. Background technique [0002] CUG (Closed User Group, Closed User Group) refers to a user group in which users in the group can communicate with other users in the group, but cannot communicate with users outside the group. CUG business can meet the needs of the group with confidential nature. The requirements for the short message CUG service are: only the users in the group are allowed to send short messages to each other, and users outside the group are not allowed to send short messages, and users outside the group are not allowed to send short messages to users in the group. [0003] The implementation of SMS CUG service requirements is divided into two parts: MO (calling) and MT (called), that is, to intercept the SMS whose sender is a number in the group and whose receiver ...

AI Technical Summary

Problems solved by technology

[0008] 1. Unable to fully realize the business: unable to restrict the exchange of point-to-point SMS with external CDMA numbers;

[0009] 2. The cost is high, and the threshold for users is high: for G-C intercommunication text messages, inter-network intercommunication text messages with other operators and the interception of application text messages are based on deleting the user number segment data, and the relevant system user number segment configuration It is a 7-digit large segment, which means that the CUG group number can only get data from a specific 7-digit integer segment, resulting in a waste of number resources. At the same time, if the user needs the SMS CUG function, he must re-apply for the number. And the numbers that can be applied for are limited, which limits the scope of use of the business;

[0010] 3. The business process requires manual intervention, which is inefficient and has potential safety hazards

The blacklist of spam callers in the GSM SMS center has a valid period, and it will become invalid after the valid period. If the SMS CUG continues to be carried out as a normal business, the C-G SMS intercepted through the blacklist can only be manually updated by maintenance personnel every month. The method is obviously not feasible in the long run; especially when the number of CUG groups continues to increase, the number of spam caller blacklists may exceed the system limit; the number of "number change" available is limited and cannot meet the requirements; for other ESME issued by It is called SMS. The SMS system has no effective means of interception. It can only notify the corresponding business system of ESME. ESME itself will not send the SMS to the CUG group number, and there are unforeseen hidden dangers in it.

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