Enterprise Deployment: Building an IP PBX Telephony Network
John Fiske · Auerbach Publications eBooks · 2020
This chapter provides payoff ideas and an explanation of the technology behind the Internet Protocol (IP) private branch exchange (PBX). A main component of enterprise IP voice is the IP PBX, which functions the way a traditional PBX does. In the IP PBX, voice traffic is digitized and compressed, placed into data packets, and transmitted across the packet network directly between the stations or wide area networks interfaces. Call manager software is designed to work seamlessly with existing telephony systems or can provide full PBX functionality on its own. It can be deployed as a single IP PBX in a single office, or as a single IP PBX with multiple geographically dispersed users. Companies with multiple sites can now easily install full telephony systems while leveraging the IP data network already in place. The IP PBX is expected to offer significant advantages in large-scale telephony. The IP PBX, evolving still, suggests a new way for businesses to communicate.