Apparatus and method for implementing end-to-end encrypted communication between line telephone and GSM handset

A wired telephone, GSM module technology, applied in the direction of telephone communication, electrical components, automatic switching offices, etc., can solve problems such as inability to execute, achieve the effect of simple structure, realize confidential communication, and ensure information security

Inactive Publication Date: 2008-05-14
成都三零瑞通移动通信有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing GSM mobile phone security machine can only call the wired telephone security machine to realize end-to-end secure communication, but cannot implement the wired telephone security machine to call the GSM mobile phone security machine itself to realize end-to-end secure communication

Method used

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  • Apparatus and method for implementing end-to-end encrypted communication between line telephone and GSM handset
  • Apparatus and method for implementing end-to-end encrypted communication between line telephone and GSM handset
  • Apparatus and method for implementing end-to-end encrypted communication between line telephone and GSM handset

Examples

Experimental program
Comparison scheme
Effect test

example

[0044] There is a line phone for calling, the number is 88888888. The GSM mobile phone is called, the number is 13988888888. The access number of the PSTN / GSM interconnection gateway is 1800.

[0045] The call communication process is as follows:

[0046] ①The calling phone uses the MODEM module of the security machine to dial to the interconnection gateway, and the number is 180013988888888;

[0047] ② PSTN wired telephone exchange, send calling number 88888888 and called number 13988888888 to the interconnection gateway, the MODEM module 1 of this gateway extracts the phone number 13988888888 of the called GSM mobile phone and passes it to the control module;

[0048] 3. the control module of interconnection gateway detects idle GSM module after receiving the number, if GSM module 1 is idle, then by the data interface of this module, dial to the called GSM mobile phone;

[0049] 4. After the called GSM mobile phone receives the ringing signal, it sends a response to the G...

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Abstract

This invention discloses a device and a method for end-to-end ciphered communication between wire telephones and cell phones. A MODEM module of the device is connected with the wire phone net, GSM module is connected with GSM net, the exchange module is connected with MODEM and GSM module, a control module is connected with the MODEM, exchange and GSM, a power supply module provides working supply to the modules. The secure communication is realized by the following steps taking the wire phone secure set as the calling party: 1, the calling party dials the gateway access number and a called cell phone number, 2, PSTN exchange provides the dial number to the gate, its MODEM extracts the number to the control module, 3, the control module calls the cell phone by GSM net, 4, the cell phone sends a response to GSM module to set up GSM communication, 5, the control sends the response to the server set to set up PSTN communication connection, 6, the control module controls the exchange module to connect MODEM and GSM modules for secure communication.

Description

technical field [0001] The present invention relates to the security technology of mobile communication and wired telephone network communication, in particular to an interconnection gateway device for mutual dialing and confidential communication between a wired phone and a GSM mobile phone, and a method for realizing end-to-end voice and data encrypted communication with the device. Background technique [0002] The wired telephone network is currently the most widely used fixed telephone network in the world, with billions of users worldwide. The GSM digital mobile communication system is currently the most successful mobile communication network, and the number of users in China has exceeded 200 million. Because the PSTN wired telephone network and the GSM network are general-purpose networks, they have no encryption function, and illegal users can easily intercept phone calls, faxes, data and other legal user information by using simple techniques. Therefore, it is imp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66H04M3/00
Inventor 曾勇梁鸿斌虞忠辉
Owner 成都三零瑞通移动通信有限公司
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