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“>Three Generations of Digital Transport NetworksThe focus of this book is on third generation digital transport networks,usually shorted to 3G, or 3rd generation, transport networks. The maincharacteristics of three generations of digital transport networks are providedin Table 1–1. The information in this table will be helpful as you read theremaining chapters in this book. Most of the terms in the table areself-explanatory, or, if not, are explained in this chapter.Table 1 
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