Definition and OverviewOverviewSometimes, when attending a class, it is okay to miss the first half-hour. After all, we do know something about the subject, and that first half-hour is likely to carry little more than introductory information. The same holds true when picking up a textbook on a particular subject. Maybe the first chapter can be skipped; again, it contains introductory material that we already know. But often this is not the case. We do not know as much as we thought we knew, and that first half-hour or that first chapter contains material that may well be prerequisite material. That is what this Web ProForum tutorial is all about. It provides the equivalent of that first half-hour or that first chapter and may well be valuable in understanding the other tutorials in this series. The tutorial will cover the fundamentals of telephony, from its inception in Alexander Graham Bell's laboratory to today's emerging technologies. |
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