PBX Versus VoIP Systems

Paper Summary:

The Internet has clearly changed the playing field for a wide range of enterprises in the past decade, but one of the fundamental changes that is taking place and that may be going unnoticed by the general public, is the use of the Internet to facilitate telephonic communications. While the majority of advocates of such systems recognize that the benefits to be realized are associated with cost savings rather than improvements in functioning over existing PBX-based systems, the trend is clear that Internet-based telephony is here to stay and will be improved in the years to come. This paper provides the background and an overview of the issues involved, followed by an analysis of PBX versus voice over IP telephone systems. A summary of the research is provided in the conclusion.

From the Paper:

"The benefits of Internet-based telephone systems will likely relate to lower costs rather than improved or enhanced functions. Clearly, the Internet is a natural network for these applications more so than the existing telephone system for a variety of reasons. For instance, packet switching allows these applications to be mixed with others over a common network, and voice can be combined with other modes of communication such as text, video, shared workspace, and so forth. For telephone-like applications, the Internet can deliver the signaling information all the way to the end node, so the telephone features can be implemented at the edge of the network."

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