I’m no plumber, but I imagine that the first company to introduce PVC pipes into the market did really well. Up until that point, houses and municipalities were fitted with much heavier cast iron, brass, or steel pipes. Compared to their metal counterparts, PVC pipes were easy to manufacture, transport, install, and they weren’t susceptible to corrosion. In fact, many of the earliest installed PVC pipes are still in use nearly 90 years later.
For my latest article for No Jitter, I explore how the SIP trunk is evolving from a simple pipe to a true solution.
Tao, Zen, and Tomorrow 