Blogs

Mobile phones in prison: reasons for their continued presence and their impact

Jammer B. | 05.08.2024 0 0

Despite strict controls on mobile phones in prisons, they continue to exist in large numbers and are used by prisoners to continue committing crimes. This article will explore the reasons for the circulation of mobile phones in prisons, the problems they cause, and potential solutions. https://www.silencejammer.com

Mobile phones in prisons
Thousands of mobile phones are confiscated in UK prisons every year. https://www.silencejammer.com...-cell-phone-blocker However, many more enter prisons through various means, such as being smuggled in or thrown over the walls. Mobile phones in prisons have become a valuable illegal resource, with the cost of borrowing them ranging from £400 to £1000. https://www.silencejammer.com...-blocker-car-signal

The government's National Offender Management Service (NOMS) seized 7,451 mobile phones and Sim cards outside prisons in England and Wales in 2013. These phones were used by prisoners to "commission murders, plan prison breaks, import automatic firearms and arrange drug imports", and the problem was widespread. One prisoner even used a mobile phone to organize crime from his cell and smuggled a machine gun into the UK.

Problems caused by mobile phones
The presence of mobile phones in prisons poses a serious security risk. Prisoners use mobile phones to continue criminal activities, such as running drug gangs, planning murders and other serious crimes. Judge David Farrell QC has said prison security is “completely inadequate”, allowing crime to become a “scandal”.

The mother of a prisoner at Northumberland Prison claimed that “the place is full of mobile phones”. Mobile phones and drugs are thrown into prisons at random, and even drones are used to deliver illegal items. Glyn Travis of the Prison Officers Association (POA) pointed out that the circulation of drugs and mobile phones completely undermines the external security that protects the public.

Despite the security precautions, the circulation of mobile phones in prisons is still high, indicating the difficulty of finding and removing these phones. The Prison Service said the obvious solution is to make these phones unusable.

Solution
Interference and blocking: Sending a signal to prevent mobile phones from receiving base station signals. This method is cheap and very effective, but it blocks all mobile phones and Sim cards in range, including those of prison staff. If not careful, it can cause interference outside the prison.

Cell Phone Jammer: The Terminator of Distracted Driving

Jammer B. | 04.08.2024 0 0

The Phenomenon and Challenges of Distracted Driving
Distracted driving refers to the driver's attention being diverted from the road for various reasons during driving, leading to potential traffic accident risks. https://www.silencejammer.com With the popularity of smartphones, the problem of distracted driving has become more serious. Various functions of smartphones, such as text messages, social media, games, etc., attract the attention of drivers and cause them to be distracted during driving. https://www.silencejammer.com...-cell-phone-blocker Especially young people, who are highly dependent on smartphones, have insufficient awareness of the risks and consequences of distracted driving. Many young people frequently use their mobile phones while driving, ignoring driving safety, and even turning a blind eye to the risks when their parents advise them to drive safely.

The Birth and Development of Cell Phone Jammers
Cell phone jammers are devices that block mobile phone signals by emitting electromagnetic waves of a specific frequency. Initially, cell phone jammers were mainly used in the military and security fields to prevent the enemy from eavesdropping or interfering with communications. With the development of technology, cell phone jammers have gradually entered the civilian market and become an effective means to solve the problem of distracted driving. By installing a cell phone jammer, drivers can be prevented from making calls or sending text messages while driving, thereby improving driving safety.

Practical application of mobile phone jammers
Take the 6 3W high-power antenna LoJack3G4G mobile phone jammer as an example. The device can shield multiple signals such as 3G, 4G, and cover a range of up to 40 meters, providing reliable signal shielding effect. The design of the jammer takes into account the needs of long-term use, and is equipped with an advanced cooling system, which can maintain stability during 24/7 continuous operation to prevent overheating and damage to the device. In addition, the jammer has a simple design and is easy to install, suitable for various models.

Technical advantages and user experience
The mobile phone jammer not only performs well in shielding signals, but its design also takes into account the actual use needs of users. The device is equipped with an advanced cooling system, which can maintain stability during long-term operation to prevent overheating and damage to the device. These technical advantages make mobile phone jammers an ideal choice for solving distracted driving problems. The jammer can also be powered by a car charger to ensure that it continues to work during driving and does not affect the normal use of the vehicle.

Future development direction
With the continuous advancement of technology, mobile phone jammers will have wider applications in the future. In addition to being used in private vehicles, mobile phone jammers can also be installed in public transportation, schools, hospitals and other places to improve public safety. The government and relevant agencies should introduce corresponding policies and regulations to encourage the use of mobile phone jammers, strengthen publicity and education on distracted driving, and raise public awareness of the hazards of distracted driving.

Background and Impact of Government Purchase of Drone Jammers on a Large Scale

Jammer B. | 01.08.2024 0 0

Introduction
In recent years, with the rapid development of drone technology, the application of drones in various fields has become more and more common.https://www.silencejammer.com However, the widespread use of drones has also brought many security risks, such as illegal filming, personal item delivery, and terrorist attacks. In response to these threats, governments have begun to purchase and use drone jammers on a large scale to protect public safety and national interests. https://www.silencejammer.com This article will explore the background of government purchase of drone jammers, different types of drone jammers, and the practical applications and impacts of these devices. https://www.silencejammer.com

Background of Government Purchase of Drone Jammers
Increase in Drone Threats: The widespread use of drones has brought potential security threats. For example, drones can be used to illegally film sensitive areas such as military facilities and airports, and may even be used by terrorists to carry out attacks. In order to deal with these threats, the government needs to take effective measures to detect and jam drones.

Driven by Technological Development: With the advancement of science and technology, more and more companies have entered the anti-drone industry and launched a variety of advanced drone jammers. The continuous improvement of the technology of these devices has made them more efficient and reliable in jamming drones, attracting the government's purchasing interest.

Legislative and Policy Support: Many countries have introduced relevant laws and policies to support and regulate the use of anti-drone equipment. Government procurement behavior is not only a support for technology, but also an emphasis on public safety and national security.

Different types of drone jamming equipment
Drone jammers: This device is usually handheld and can emit electromagnetic waves to interfere with the control signals of drones, causing them to lose control or return to the starting point. The advantages of drone jammers are strong portability, easy operation, and suitable for quick response scenarios.

The necessity and implementation strategy of mobile phone jammers

Jammer B. | 31.07.2024 0 0

Introduction
In modern society, mobile phones have become an indispensable part of people's daily lives. However, in certain specific occasions, the use of mobile phones may bring many problems and hidden dangers. https://www.silencejammer.com Especially in parliaments and legislatures, the abuse of mobile phones may interfere with the meeting process, leak confidential information, and even cause security risks. This article will explore the necessity, implementation strategy and possible impact of mobile phone jammers in parliaments around the world. ttps://www.silencejammer.com/mobile-jammer-cell-phone-blocker

The necessity of mobile phone jammers
Preventing conference interference: Parliaments and legislatures need to discuss and make decisions in a serious environment. The use of mobile phones may interrupt speeches and distract attention, thereby affecting the efficiency and quality of meetings. Mobile phone jammers can ensure that there is no interference from mobile phones during meetings and improve the effectiveness of meetings. https://www.silencejammer.com...-blocker-car-signal

Protecting confidential information: The content discussed by parliaments and legislatures often involves state secrets and sensitive information. The recording, photography and communication functions of mobile phones may be improperly used, resulting in information leakage. Mobile phone jammers can effectively block the recording and communication functions of mobile phones and ensure information security.

Maintaining order and discipline: The entertainment function of mobile phones may distract members during meetings, affecting their participation and decision-making quality. By using mobile phone jammers, members can be forced to focus on the content of the meeting and maintain order and discipline in the meeting.

Strategies for implementing mobile phone jammers
Choose appropriate jamming equipment: Different types of mobile phone jammers are suitable for different occasions and needs. The parliament can choose the appropriate type of jammer according to its actual situation, such as portable jammers, fixed jammers, etc. In addition, the frequency band coverage of the jammer needs to be considered to ensure that various communication signals such as GSM, 3G, 4G, and 5G can be effectively interfered with.

Controversy and Challenges of Using Mobile Phone Jamming Technology in Schools

Jammer B. | 30.07.2024 0 0

Introduction
With the popularity of mobile phones among teenagers, many schools are faced with the problem of how to effectively manage students' use of mobile phones. https://www.silencejammer.com The New South Wales government of Australia proposed to use mobile phone jamming technology in schools to ban students from using mobile phones, but this proposal has caused widespread controversy. https://www.silencejammer.com...-cell-phone-blocker This article will explore the background, implementation details and challenges of using mobile phone jamming technology in schools.

Policy Background
Behind the proposal of mobile phone jamming technology is the determination of the New South Wales Labor Party to ban public high school students from using mobile phones before the state election. https://www.silencejammer.com...-blocker-car-signal Education Minister Prue Car said that the government is evaluating the feasibility of this technology to ensure that the mobile phone ban is effectively implemented in the school environment. The proposal of the mobile phone jamming technology company has been supported by several private schools, but it has also triggered strong opposition from telecommunications companies. https://www.silencejammer.com...ooth-blocker-device

Implementation of mobile phone jamming technology
According to the proposal of Educell, mobile phone jamming technology is a "set it and forget it" system that can limit mobile phone coverage in schools, thereby preventing students from using social media and sending and receiving calls and text messages. Supporters of this technology believe that by blocking mobile phone signals, it can effectively reduce the problems caused by students being distracted by mobile phones during school.

Controversy and Challenges of Using Mobile Phone Jamming Technology in Schools

Jammer B. | 30.07.2024 0 0

Introduction
With the popularity of mobile phones among teenagers, many schools are faced with the problem of how to effectively manage students' use of mobile phones. https://www.silencejammer.com The New South Wales government of Australia proposed to use mobile phone jamming technology in schools to ban students from using mobile phones, but this proposal has caused widespread controversy. https://www.silencejammer.com...-cell-phone-blocker This article will explore the background, implementation details and challenges of using mobile phone jamming technology in schools.

Policy Background
Behind the proposal of mobile phone jamming technology is the determination of the New South Wales Labor Party to ban public high school students from using mobile phones before the state election. https://www.silencejammer.com...-blocker-car-signal Education Minister Prue Car said that the government is evaluating the feasibility of this technology to ensure that the mobile phone ban is effectively implemented in the school environment. The proposal of the mobile phone jamming technology company has been supported by several private schools, but it has also triggered strong opposition from telecommunications companies. https://www.silencejammer.com...ooth-blocker-device

Implementation of mobile phone jamming technology
According to the proposal of Educell, mobile phone jamming technology is a "set it and forget it" system that can limit mobile phone coverage in schools, thereby preventing students from using social media and sending and receiving calls and text messages. Supporters of this technology believe that by blocking mobile phone signals, it can effectively reduce the problems caused by students being distracted by mobile phones during school.

Indian government crackdown on illegal sale of wireless jammers and boosters

Jammer B. | 29.07.2024 0 0

Background
With the rapid development of technology, mobile communication devices have become an indispensable part of people's daily lives. https://www.silencejammer.com However, with the advancement of technology, some criminals use devices such as signal jammers, GPS blockers and signal boosters to engage in illegal activities. This not only interferes with the normal operation of public telecommunications services, but also poses a threat to public safety. To this end, the Indian central government has recently cracked down on the sale and use of these illegal devices. https://www.silencejammer.com...-cell-phone-blocker


Government statement
In an official statement, the Department of Telecommunications (DoT) of India clearly stated that it is illegal to use cellular signal jammers, GPS blockers or other signal jamming devices in India unless special permission is obtained. The statement also emphasized that all e-commerce platforms are not allowed to sell or assist in the sale of wireless jammers on their online platforms. This move is aimed at curbing the circulation of illegal devices and ensuring the safety and smoothness of public communications.

Harm of illegal devices
The illegal use of signal jammers and boosters can cause serious interference to public telecommunications services. For example, signal jammers can block mobile phone signals, making it impossible for users to make normal calls or data transmissions. Although signal boosters can improve mobile phone signal reception, unauthorized use may interfere with telecommunications networks, resulting in poor communication quality and even affecting the normal use of emergency call services. These behaviors not only bring inconvenience to ordinary users, but may also pose a threat to public safety.

Government response
In order to solve this problem, the Indian government has taken a series of measures. On the one hand, the government has increased supervision on the sale of illegal equipment and requires e-commerce platforms not to sell or assist in the sale of wireless jammers. On the other hand, the government reminds the public to use wireless jammers and boosters/repeaters correctly through publicity and education, and enhance people's legal and safety awareness.

Russia's response to GPS interference on European flights

Jammer B. | 27.07.2024 0 0

The severity of the problem
In recent years, European flights have frequently encountered GPS interference, especially in the Baltic Sea, the Black Sea and the eastern Mediterranean. https://www.silencejammer.com These interferences mainly originate from the activities of the Russian military and have had a serious impact on civilian flights. On May 2, 2024, BBC Monitoring Russia Editor Vitaly Shevchenko reported the situation in detail, citing the opinions of many experts and institutions. https://www.silencejammer.com...-blocker-car-signal

In March this year, the GPS signal of the Royal Air Force plane carrying British Defense Secretary Grant Shapps was interfered when it approached Russian territory. Finnair had to suspend its daily flights to Tartu, Estonia for a month due to interference problems. Juho Sinkkonen, vice president of flight operations at Finnair, said that their aircraft encounter GPS interference every day and receive more than 100 interference cases reported by pilots every month. https://www.silencejammer.com...-cell-phone-blocker

Interference technology and impact

GPS interference mainly includes signal blocking and signal spoofing. Signal blocking interferes with legitimate GPS signals, making them unable to be received normally, affecting navigation and positioning functions. Signal spoofing misleads receiving devices by sending false signals, showing the wrong location. These interferences not only affect aviation flights, but also maritime traffic and other systems that rely on GPS.

Although the interference problem poses a limited direct threat to aviation safety, it poses a challenge to operational efficiency and pilot workload. Cyrille Rosay, a senior cybersecurity expert at the European Aviation Safety Agency (EASA), pointed out that the interference problem existed before Russia invaded Ukraine in February 2022, but the situation has deteriorated significantly in recent years. EASA records thousands of interference incidents each year, showing the severity and widespread of the problem.

La Cañada Flintridge Fights Wi-Fi Jammer Crime

Jammer B. | 26.07.2024 0 0

　　The Rise of a New Criminal Method

　　In La Cañada Flintridge, criminals have begun using Wi-Fi jammers to bypass home security systems. sThe devices can disrupt the normal operation of wireless cameras, alarm systems and door sensors, making them unable to send alerts to homeowners, allowing criminals to steal without being noticed. https://www.silencejammer.com

　　Arabo Parsejian of the city's administrative services department said officials have noticed criminals increasingly relying on this new technology to carry out burglaries. https://www.silencejammer.com...-cell-phone-blocker During an attempted burglary a few months ago, police found a Wi-Fi jammer at the scene, confirming the trend. https://www.silencejammer.com...-blocker-car-signal


　　Police Response

　　In response to this new criminal method, the City of La Cañada Flintridge, in partnership with the Crescenta Valley Police Department and Los Angeles County, has taken a series of measures. Wifi jammer In addition to increasing police patrols, they also plan to conduct some undercover work to catch criminals using this new technology.

　　The city has also decided to purchase Flock Safety cameras, which can read license plates and flag suspicious vehicles, including those that may be involved in crimes. In this way, the police can more effectively monitor and track the whereabouts of criminals and improve the efficiency of solving cases.

　

Los Angeles Police Warn of a Surge in Wi-Fi Jammer Burglaries

Jammer B. | 25.07.2024 0 0

The Los Angeles Police Department (LAPD) recently warned residents of a surge in home burglaries, with criminals using Wi-Fi jammers to break into homes and steal from security cameras and smart doorbells. The trend is particularly prominent in the Wilshire area, and police are reminding residents to take extra security measures to protect their homes. This article will take a closer look at how this criminal tactic works, how police respond, and what residents can do to prevent it. https://www.silencejammer.com

How Wi-Fi Jammers Work
A Wi-Fi jammer is a device that emits a powerful signal to interfere with wireless network devices. https://www.silencejammer.com...-cell-phone-blocker Criminals use these jammers to interrupt communications in home security systems, making security cameras and smart doorbells unable to work properly, allowing for silent intrusions. While these jammers are easy to buy online and inexpensive, using such devices is illegal in the United States. https://www.silencejammer.com...-cell-phone-blocker

Specific Case Analysis
According to the LAPD, multiple suspects in Wilshire burglaries have successfully used Wi-Fi jammers to break into victims' homes and take away a large number of valuables. These cases usually involve 3-4 criminals who first use jammers to disable security devices and then enter the house through the second-floor balcony to look for high-end jewelry, cash and other valuables. In addition, the criminal gangs usually arrange a driver to keep watch outside to ensure that they can quickly escape the scene.

Police response measures
The Los Angeles Police Department has taken active measures to deal with this new criminal method, including issuing warnings and safety tips on social media. They also provide a detailed safety checklist and recommend residents to strengthen physical security measures, such as protecting circuit boxes, installing hard-wired anti-theft alarm systems, upgrading lighting equipment, and trimming shrubs and trees.

Russia's suspicion: the truth behind the GPS jamming incidents in European airsp

Jammer B. | 23.07.2024 0 0

　　Recently, aircraft in the airspace of many European countries have frequently encountered GPS signal jamming, resulting in flight interruptions for more than 1,600 aircraft. This series of events has raised widespread concerns that Russia may be involved. This article will deeply analyze the background, patterns and impact of these jamming incidents, and explore future response strategies. https://www.silencejammer.com

　　Background of the jamming incidents

　　Europe's aviation industry faces unprecedented challenges, especially in the Baltic airspace. https://www.silencejammer.com...-cell-phone-blocker Most of the jamming incidents are concentrated in Polish airspace, but flights in Germany, Denmark, Sweden, Latvia and Lithuania have also encountered similar problems. https://www.silencejammer.com...-blocker-car-signal

　　Analysis by the Open Source Intelligence Forum shows that the source of these jamming incidents is likely to be located in Kaliningrad, a Russian enclave between Poland and Lithuania. Russian troops stationed in Kaliningrad are alleged to have equipment that jams the Global Navigation Satellite System (GNSS), including GPS. GPS signals are critical to aviation operations, so this type of jamming has caused widespread concern and worry.

　　Modes and impacts of interference

　　A Lithuanian defense official who wished to remain anonymous revealed that Russia's GNSS countermeasures include jamming and spoofing signals, which vary in scope, duration and intensity. These jammings demonstrate Russia's technical strength in electronic warfare.

Basel politicians call for ban on mobile phones in schools

Jammer B. | 22.07.2024 0 0

　　Mobile phone use a growing problem

　　Mobile phone use in schools has become a growing problem, especially in terms of affecting children's development. Politicians in Basel are calling for measures to be taken to combat the problem. Basel city councillor Anouk Feurer has publicly voiced his support for a ban on mobile phones in schools, noting that too much screen time can have a negative impact on young children. https://www.silencejammer.com

　　Challenges in the digital age

　　In today's digital world, it is very common for children to be exposed to smartphones and tablets from an early age. Parents often use these devices to distract their children, whether at dinner or in the stroller, and mobile phones and tablets seem to have become a common tool in parenting. However, the consequences of long-term use of these devices are worrying. https://www.silencejammer.com...-cell-phone-blocker

　　Impact of mobile phones in schools

　　Mobile phones are being used more than ever in schools, raising concerns about their long-term consequences. Studies have shown that too much screen time can have a negative impact on children's language development, their ability to concentrate, and their ability to build relationships with adults. Feurer pointed out that children need to develop many important skills in the first few years of life, and too much screen time can hinder the development of these skills.

　　Research supports the recommendation to ban mobile phones

　　Eva Unternaehrer of the University Clinic of Basel shares Ferrer's concerns. She emphasizes that every minute a young child spends in front of a screen is a waste. Especially in the critical period between zero and three years old, screen time should be minimized. The World Health Organization (WHO) also recommends that screen time should be completely avoided in the first two years of life. Unternaehrer recommends taking preventive measures before birth, such as introducing the importance of reducing screen time in childbirth preparation classes.

Russia passes law to completely ban the use of mobile phones in primary and seco

Jammer B. | 19.07.2024 0 0

Recently, Russia passed an important law, stipulating that from September 1, 2024, the use of communication tools, including smartphones, will be completely banned in primary and secondary schools. https://www.silencejammer.com This move aims to improve students' learning environment and mental health, and has been supported by some teachers and parents, but it has also sparked widespread discussion and controversy.

Legal background and implementation
When announcing the law, Russian Minister of Education Kravtsov pointed out that the use of mobile phones has become a major distraction in classroom teaching. https://www.silencejammer.com...-cell-phone-blocker In order to protect students' attention and learning effects, Russia will completely ban students from using mobile phones in class from the beginning of the new semester. This ban is not limited to smartphones, but also includes all other types of communication tools.

According to the new law, students can only use mobile phones for teaching purposes or in emergencies. This measure aims to ensure that students can devote themselves to learning during class without being disturbed by external interference.

Responses from teachers and parents
According to a previous poll, half of Russian teachers support a complete ban on the use of mobile phones in schools, believing that this will help improve students' classroom participation and attention. However, only 30% of parents agree with this idea. Some parents worry that if they cannot contact their children in an emergency, it will create safety hazards. In this regard, Kravtsov said that parents can contact students through the school's landline during class breaks to deal with emergencies.

Mobile Phone Problems in Prisons

Jammer B. | 18.07.2024 0 0

Current Situation and Background
Thousands of mobile phones are confiscated in British prisons every year, however, many more mobile phones are sneaked into prisons through various means. https://www.silencejammer.com The National Offender Management Service (NOMS) seized 7,451 mobile phones and SIM cards outside prisons in England and Wales in 2013. These mobile phones are used by prisoners to plan crimes such as murder, jailbreak, and smuggling weapons and drugs.

Northumberland Prison is a typical case. https://www.silencejammer.com...-cell-phone-blocker Although staff have tried to use various technical and intelligence means to prevent illegal items from entering the prison, the effect is limited. A prisoner's mother said, "This place is full of mobile phones." Glyn Travis of the Prison Officers Association (POA) pointed out that drugs and mobile phones are thrown into prisons at will, and even delivered by drones, which undermines the prison's external security line.

Application and limitations of technical means
In order to deal with the problem of mobile phones, prison management departments have tried to use a variety of technical means, such as mobile phone jammers and signal grabbers. https://www.silencejammer.com...-cell-phone-blocker These devices can block or interfere with mobile phone signals and prevent prisoners from using mobile phones. However, these technical means face many challenges in practical application.

Environmental complexity: The external environment of prisons is complex, and the effectiveness of jammers and grabbers is limited. For example, Sodexo, the management company of Northumberland County Prison, said that despite the use of a variety of technical means, the effect is not ideal.

Technical limitations: Existing jammers and grabbers have deficiencies in coverage, signal strength, etc., and it is difficult to completely block mobile phone signals. Some prisoners may bypass these technical means by adjusting the position of their mobile phones or using signal enhancement devices.

Legal and ethical issues: The use of jammers and grabbers may affect the communication services of legal residents around the prison, involving legal and ethical issues. In addition, the legal right of prisoners to communicate in emergencies also needs to be guaranteed.

Application and Prospects of High-tech Shielding Technology in Global Prison Man

Jammer B. | 17.07.2024 0 0

Introduction
A common challenge facing prison management around the world is the use of illegal mobile phones. Prisoners use smuggled mobile phones to carry out criminal activities, harass victims and plot jailbreaks, posing a huge threat to prison security. In response to this problem, prison management departments in various countries have introduced advanced shielding technology. This article will explore the application and prospects of high-tech shielding technology in global prison management. https://www.silencejammer.com

Illegal Mobile Phone Problems in Prisons Around the World
Problem Overview
The use of illegal mobile phones is prevalent in prisons around the world. Prisoners use illegal mobile phones to carry out criminal activities, harass victims and plot jailbreaks, posing a huge challenge to prison management. For example, in prisons in Texas and South Carolina, the use of illegal mobile phones is particularly serious. https://www.silencejammer.com...-cell-phone-blocker

Statistics
Statistics from Texas and South Carolina show that prisons in these states have confiscated a large number of illegal mobile phones in the past few years. For example, Stiles Prison and McConnell Prison in Texas confiscated 110 and 73 illegal mobile phones respectively in 2012, while Lee Correctional Institution in South Carolina has successfully disabled more than 700 illegal mobile phones since the pilot program was launched last summer. https://www.silencejammer.com...-blocker-car-signal

Introduction of high-tech blocking technology
Management access system
To address this problem, prisons in many countries have introduced advanced blocking technology. For example, Texas and South Carolina prisons have introduced a system called "management access" specifically designed to block unauthorized mobile phone calls, text messages, and Wi-Fi access.

Technical effect
These blocking technologies block illegal mobile phone signals by identifying the IMEI number of the mobile phone, thereby preventing prisoners from using illegal mobile phones to communicate. For example, Brian Sterling, director of the South Carolina Department of Corrections, pointed out that since the introduction of blocking technology, the use of legal calls has increased by nearly 70%.

Application and effectiveness of blocking technology
Preventing illegal communications
The main goal of blocking technology is to prevent prisoners from communicating through smuggled mobile phones. By blocking mobile phone signals, the blocking system can effectively prevent prisoners from plotting to escape from prison, continuing criminal activities, and harassing victims. For example, Bruce Toney, inspector general of the Texas Department of Criminal Justice, said that the blocking equipment at McConnell Prison has intercepted hundreds of unauthorized calls and text messages and discovered about 75 mobile phones or device parts.

Improving prison management
Blocking technology not only effectively prevents the use of illegal mobile phones, but also improves prison management. For example, Brian Sterling, director of the South Carolina Department of Corrections, pointed out that since the introduction of blocking technology, the use of legal calls has increased by nearly 70%. This shows that after prisoners were unable to use illegal mobile phones, they used more legal communication channels provided by prisons, which improved the communication management of prisons.

Future Development and Challenges
Technology Upgrade
Although blocking technology has achieved remarkable results in preventing the use of illegal mobile phones, with the continuous advancement of technology, the means of using illegal mobile phones are also constantly upgrading. Therefore, prison management departments need to continuously upgrade blocking technology to meet new challenges. For example, in the future, it can be considered to introduce a more intelligent blocking system that can automatically identify and intercept illegal signals.