The 3CX Engine Number is a service designed to provide affordable and reliable communication for prisoners in Australian correctional facilities. By assigning a local landline number to an inmate, the service allows them to make calls at reduced rates—typically between $0.30 and $0.40 per call—compared to standard prison call charges, which can be as high as $0.90 per minute. https://3cxenginenumber.com.au/