Evolution and the current state of the voice communication equipments integrated into operations management systems

Abstract

Voice communication equipment are basic accessories of the today's operations management systems. Due to the nature of the activity, wireless devices and systems are integrated into these systems. The wireless devices in the past decade have undergone huge development, due to the convergence of information and telecommunication systems. Our study focuses on point-to-multipoint communication technologies, review the development of these eqipments, basic features. Analog systems that are still in use today, the circuit-switched digital technologies, and technologies that work as applications on packet-switched systems released a few years ago are disclosed. We refer the dispatcher softwares that can be interpreted as an integration interface of these systems, in addition, standards are mentioned that assures compatibility in the technical development of technologies