Internet TelephonyLee W. McKnight, William Lehr, David D. Clark Internet telephony is the integration and convergence of voice and data networks, services, and applications. The rapidly developing technology can convert analog voice input to digital data, send it over available networked channels, and then convert it back to voice output. Traditional circuit-switching networks such as telephone lines can be used together with packet-switching networks such as the Internet, thereby merging communication modes such as email, voice mail, fax, pager, real-time human speech, and multimedia videoconferencing into a single integrated system. Because Internet telephony allows the interchangeable and seamless use of phones, computers, personal digital assistants, T V cables, wireless, and Web technology, myriad combinations become possible. |
Contents
A Taxonomy of Internet Telephony Applications | 17 |
International Internet | 43 |
Vertical Integration Industry Structure and Internet | 93 |
LocalLoop Technology and Internet Structure | 125 |
Internet Telephony and the Datacentric Network | 143 |
Contents | 165 |
Internet Telephony Service Providers | 193 |
Economics and Policy | 217 |
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Common terms and phrases
access charges accounting rate ADSL architecture AT&T backbone bandwidth cable capacity Centrex circuit circuit-switched communications competition connection consumer Corporation cost per line dial-in DSLAM Economics and Costs elements end user equipment example exchange carriers facilities facilities-based FCC Rcd Figure functions gateway growth handset Industry Structures infrastructure innovation interconnection interface Internet access Internet protocol Internet service providers Internet telephony Internet telephony services IP network IP telephony IP-based IP-PBX IP/ADSL ITXC Kbps leased local exchange carriers long-distance loop Mbone McGarty minute modem monthly cost multimedia offer operations packet percent pricing protocol PSTN RBOCs real-time regulatory residential revenue router scenario servers Strategies subscribers switch Table tele telecom telecommunications telephone network telephone service tion transmission transport trunk Universal Service UUNET vertical integration voice and data voice traffic