Ningbo Joiwo Explosion-proof Science and Technology Co., Ltd. is a reliable China-based manufacturer, supplier, and factory of high-quality prison calling systems. Our prison calling system is designed specifically to meet the communication requirements of correctional facilities, detention centers, and jails. Our prison calling system includes a series of high-performance components such as inmate phones, correctional officer phones, intercoms, and control units. Our intercom systems ensure seamless communication between inmates and correctional officers with a high degree of clarity and steadiness in the audio quality. The inmate phones are durable and user-friendly, offering superior audio quality and clear communication to ensure inmates stay in touch with their loved ones. At Ningbo Joiwo Explosion-proof Science and Technology Co., Ltd., we strive to offer our customers a reliable and efficient solution for their security needs. Our prison calling system is designed to withstand harsh prison environments, ensuring durability and long-lasting functionality. We aim to provide our customers with cutting-edge products and exceptional customer service, at competitive prices. Get in touch with us today to learn more about our prison calling system and how it can benefit your facility.