Centratama Group is a group of companies that provide telecom and broadband infrastructure solutions. It offers tower infrastructure and in-building DAS (Distributed Antenna Systems) for cellular networks, as well as fiberized broadband Internet services for corporate and residential markets. In 2021, in order to better Expand and develop its business, Centratama chose to step into cooperation with Hizima, by adopting the keyless smark lock system ZMP-40 to achieve refined management of all base station access.