Core Viewpoint - The article highlights the successful collaboration between Shandong Unicom and law enforcement in combating telecom network fraud through a targeted operation against illegal VOIP device installations, resulting in the dismantling of multiple criminal groups and the arrest of several suspects. Group 1: Action and Results - In September, Shandong Unicom actively supported police in a special operation named "打猫" (Operation Cat), focusing on illegal VOIP device installations in various locations, achieving significant results [1] - The operation led to the dismantling of multiple criminal gangs and the arrest of dozens of suspects, effectively curbing the high incidence of telecom network fraud [1] Group 2: Nature of the Threat - The illegal VOIP devices can disguise overseas scam calls as local fixed-line calls, significantly increasing the concealment of fraud activities [3] - Criminals remotely control these devices, creating a spatial separation between the perpetrator and the equipment, complicating investigation efforts [3] Group 3: Collaborative Mechanism - The success of the operation is attributed to the established police-enterprise collaboration mechanism, where an anti-fraud task force uses intelligent monitoring systems to detect abnormal numbers and initiate thorough investigations [4] - Precise leads are quickly relayed to law enforcement, aiding in targeted operations against criminal groups [4] Group 4: Preventive Measures - Alongside enforcement actions, Shandong Unicom has enhanced security and early warning measures for key clients, conducting inspections in high-risk areas such as hospitals and office buildings [5] - The company has delivered warning notices to key clients and assisted in improving fixed-line usage registration systems, thereby reducing fraud risks at the source [5] Group 5: Internal Capacity Building - The company places a strong emphasis on internal training, equipping installation and maintenance personnel with skills to identify VOIP devices and common concealment methods [6] - A notable incident involved an engineer who, upon receiving a tip about a VOIP installation, promptly assisted police in apprehending a suspect, demonstrating the effectiveness of the training [6] - The company plans to continue optimizing the police-enterprise collaboration mechanism and strengthen technical defense systems to further combat telecom network fraud [6]

Core Viewpoint - The recent successful operations by Liaoning Unicom's Dandong and Benxi branches highlight the effectiveness of the police and telecom companies' collaboration in combating telecom fraud, leading to the arrest of suspects involved in providing communication support to overseas scam groups [1][2]. Group 1: Case Details - Liaoning Unicom's Benxi branch received a suspicious VOIP fixed phone dialing alert and acted swiftly, organizing personnel to investigate within ten minutes [1]. - The police, upon receiving the lead, quickly dispatched a team to the scene, identifying two suspects who illegally installed VOIP equipment in a hospital to assist overseas fraudsters [1]. - The suspect, Wu, was apprehended in Changchun, Jilin Province, and confessed to setting up VOIP devices in multiple locations to facilitate telecom fraud [2]. Group 2: Additional Operations - Dandong's police also reported success in combating telecom fraud, utilizing leads from Dandong Unicom to investigate traditional phone-based scams [4]. - A specialized task force was formed to analyze the information from three related cases, leading to the identification of a single suspect responsible for the crimes [4]. - The suspect, Liu, was arrested in Kuandian and admitted to his involvement in making scam calls [5].

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]