With the advent of voice-over-IP (VoIP) technology, there has
been a dramatic movement toward IP-only telecommunications,
leaving the twisted pair of yesteryear in the dust. Lower costs, automated directories, centralized monitoring, and ease of call routing are just a few of the advantages that a good VoIP implementation can bring to a workplace. But many businesses have been held back from jumping on the VoIP bandwagon because it can seem daunting or expensive to set up. The reality of VoIP is that some very modest hardware and a suite of free software tools can make for an enterprise-class VoIP system that can serve up to 1,000 office users in a single building.
In this article, we'll walk through the basics of doing VoIP with Asterisk, an open-source, software private branch exchange (PBX). Note that this isn't a detailed how-to—it's more of a overview of the basics of building a VoIP system, with some notes on best practices. After reading this article, you should have a sense of what's involved in a moderately sized VoIP setup, and of what such a setup can do for your business.
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