A system and method for backfilling numbers based on communication billing bills

Abstract

A system and method for number backfilling based on a communication billing slip are provided. The system is based on the core network Mc port data and tandem office signaling log collected from the telecommunication network of the basic telecommunication operation enterprise. The real-time correspondence between the called real number and the MSRN or TLDN in the signaling log is realized by analyzing the communication billing bill data, and the number association backfilling is carried out on the signaling log data of the TMSC, and after the backfilling is successful, it is stored in the distributed file system. The system consists of six parts: telephone bill collection, telephone bill analysis, signaling log filtering, number association backfilling, dynamic database and distributed file system. The MSRN / TLDN number realized by the invention and the called real number corresponding to the MSRN / TLDN number backfill provide convenience for inquiring and analyzing the signaling log, provide effective analysis and processing means for the public security and the government, and have very good application value.

Description

technical field [0001] The invention relates to a system and method for backfilling numbers based on communication charging bills, and belongs to the technical field of information security. Background technique [0002] The telephone fraud prevention system is based on the fixed network and mobile network of the international bureau and inter-provincial tandem bureau to collect signaling and media, so as to analyze and comprehensively prevent telephone fraud scenarios. Based on the routing rules of the core network when the mobile user is called under the 2 / 3G mobile network, the gateway mobile switching center GMSC (Gateway Mobile Switching Center) needs to find the current mobile switching center MSC (Mobile Switching Center) where the called party is based on the routing rules Carry out the routing connection of the call, so in the signaling collection of the tandem mobile switching center TMSC (Tandem Mobile Switching Center) tandem office, it is found that the called n...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the call signaling association method is that it is necessary to collect the original signaling log of the Mc port of the core network, analyze the BSSAP, H.248, and BICC protocol messages, and then perform the association and backfill of the calling and called numbers according to the CIC, TID, and SDP information , and does not implement the backfill technology for MSRN / TLDN numbers

[0007] The defect of this method of backfilling the IMSI by collecting bills is that this method is based on collecting the corresponding relationship between TMSI and LAC in the signaling, searching for the corresponding relationship with the IMSI through the bill, and then backfilling the IMSI number. However, they all No backfill technology based on MSRN / TLDN numbers

It is realized based on the core network signaling analysis when the user accesses the Internet, but it does not involve the backfilling technology of the MSRN / TLDN number assigned by the called user when the user calls

Images