Chapter 2
VoIP: Not Your Father’s Telephone Service
In This Chapter
Uncovering the origins of VoIP
Telephoning using analog lines
Going digital
Networking analog and digital
Digitizing the public telephone network
Raging war between circuits and packets
Replacing POTS phone systems with VoIP
Discovering how private telephone systems reduce POTS costs
Watching network types multiply and morph
Voice over IP represents a significant change from the traditional way that telephone calls have been handled until recently. Even so, the genesis of VoIP is rooted in the history of networks, specifically, ...
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