An Australian-first trial of technology that will stop inmates from making calls from mobile phones they’ve illegally smuggled into jail has begun at a prison west of Sydney. The project trials the use of a Distributed Antenna System (DAS) to jam phones within the prison under the supervision of the ACMA and mobile phone carriers. The DAS system will jam the channels transmitting mobile phone signals within the prison but prevent disruption outside the prison. […]
cell phone jamming
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As we have written previously, the CDCR has forgone all prison telephone commissions as part of a new contract with Global Tel*link (GTL) in return for GTL installing managed access signal (MAS) jamming systems in all 33 of the CRDR’s prison facilities. However, the California Council on Science and Technology (CCST) released a report today advising the State of California to use security screening systems, similar to those in airports, in state prisons before investing […]
Continuing a trend to fight contraband cell phones in prisons through the deployment of managed access cell phone signal jammers, Maryland has become the latest state to investigate the technology. Maryland has received a federal grant to help fight cell phone use in prisons. The Maryland Department of Public Safety and Correctional Services announced a $2 million contract over three years with Columbia, Md.-based Tecore Networks to deploy technology known as managed access. The system […]
The use of wireless jammers to block contraband prison cell phones is one of the many supply-side initiatives being investigated and deployed in prisons around the world. As shown by these news items, this frequently results in the loss of cellular service for the homes and businesses located near the prisons. This calls into question the viability of using this technology to eliminate the use of contraband cell phones. Recently, in response to reports of […]
An article describing some of the technical problems with contraband cell phone jamming in a prison. Unlike the managed access systems used in the United States, this Cayman Islands implementation blocks all cellular signals. Except, it doesn’t. According to the article, “Government officials confirmed Wednesday the cell jamming equipment had not been working in all areas of the prison or at certain times, largely due to the proximity of a telecommunications tower next to the […]