VoIP monitoring system and VoIP monitoring method

• US 7,822,020 B2
• Filed: 07/25/2008
• Issued: 10/26/2010
• Est. Priority Date: 05/30/2008
• Status: Expired due to Fees

• Current Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: Hsieh, An-Nan, Su, Hai-Bin
• Primary Examiner(s): Kumar; Pankaj
• Assistant Examiner(s): Jones; Prenell P
• Application Number:
  US12/180,242
• Publication Number:
  US 20090296902A1
• Time in Patent Office: 823 Days
• Field of Search: 370/352, 370/241, 370/389, 370/222, 370/390, 370/356, 370/353, 370/395, 370/400, 370/401, 725/139, 725/105, 709/203, 709/223, 709/219, 709/208, 709/224, 455/560, 455/445, 455/425, 455/519, 379/88, 379/201, 379/45, 379/88.04, 379/93, 707/104, 726/25
• US Class Current: 370/352
• CPC Class Codes: H04L 63/00 Network architectures or network communication protocols for network security cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00; network architectures or network communication protocols for wireless network security H04W12/00; security arrangements for protecting computers or computer systems against unauthorised activity G06F21/00
• CPC Class Codes: H04L 63/30 for supporting lawful interception, monitoring or retaining of communications or communication related information circuit switched telephony call monitoring H04M3/2281
• CPC Class Codes: H04M 3/2281 Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls
• CPC Class Codes: H04M 7/0078 Security; Fraud detection; Fraud prevention

Abstract

A Voice over Internet Protocol (VoIP) system includes two or more VoIP terminals, a monitoring server (30), and a soft switch device (10). The soft switch is capable of determining whether or not phone number associated with at least one of the two or more VoIP terminals is predetermined to be monitored, amending information associated with communication between the two or more VoIP terminals, and establishing the communication between the two or more VoIP terminals through the monitoring server. The monitoring server is capable of reading voice data packets sent between the two or more VoIP terminals.

Claims

1. A Voice over Internet Protocol (VoIP) system, the system comprising:

two or more VoIP terminals;

a monitoring server;

a soft switch device;

wherein the soft switch is capable of determining whether or not phone number associated with at least one of the two or more VoIP terminals is predetermined to be monitored, amending information associated with communication between the two or more VoIP terminals, and establishing the communication between the two or more VoIP terminals through the monitoring server; and

the monitoring server is capable of reading voice data packets sent between the two or more VoIP terminals;

wherein the soft switch device is connected to a security device, and the soft switch device is capable of transmitting phone numbers targeted for monitoring to the security device;

wherein the monitoring server is capable of transforming the voice data packets to audible voice signals, and transmitting the audible voice signals to a monitoring terminal, the monitoring server comprises a control device being capable of transforming the voice data packets to the audible voice signals, the control device comprises a data interface being capable of transmitting the audible voice signals to the monitoring terminal, the audible voice signals are Pulse Code Modulation voice signals.

2. A Voice over Internet Protocol (VoIP) method comprising:

attempting a communication between two or more VoIP terminals;

determining whether at least one of the two or more VoIP terminals exist on a predetermined list of VoIP terminals selected for monitoring;

amending information associated with the communication, and delivering a monitoring command to a monitoring server by a soft switch device;

establishing the communication through the monitoring server;

reading voice data packets from the communication;

playing the voice data packets as audible voice signals by a monitoring terminal;

transforming the voice data packets to the audible voice signals by a control device of the monitoring server, and transmitting the audible voice signals to the monitoring terminal by a data interface of the control device;

monitoring and recording the audible voice signals from the monitoring server by the monitoring terminal.