揭秘“黑盒子”诈骗：座机电话如何成为电信诈骗帮凶

Core Viewpoint - The article discusses the increasing use of VOIP technology by fraudsters to conduct telecom scams, highlighting the methods used and the importance of public awareness and prevention measures. Group 1: VOIP Technology and Its Use in Fraud - VOIP technology allows for the transmission of voice information over the internet, enabling fraudsters to disguise their calls as domestic landline numbers, enhancing the concealment and deception of their activities [1][5] - Criminals can remotely control VOIP devices to make calls and send messages, often impersonating telecom company staff to target vulnerable individuals, particularly the elderly [1][5] Group 2: Case Study and Law Enforcement Response - A specific case in Changzhou involved the discovery of VOIP devices installed in a residential area, leading to the identification and arrest of a suspect who had tools for installing such devices [2][4] - The police were able to extract fingerprints and DNA from the VOIP devices, which aided in tracking down the suspect and dismantling a related criminal operation in Nanjing [4][5] Group 3: Criminal Methods and Patterns - Fraudsters typically install VOIP devices in locations with high fixed-line call volumes, such as hotels and hospitals, to facilitate their scams [5][9] - The devices can convert international numbers into local numbers, misleading victims into believing they are receiving calls from legitimate domestic sources [5][9] Group 4: Public Awareness and Prevention - Authorities emphasize the need for citizens to report suspicious activities, such as unknown individuals installing devices in public areas, and to verify any unsolicited calls claiming to be from service providers [7][10] - The article also highlights the importance of hotels and similar establishments to enhance their security measures against the installation of such fraudulent devices [10]