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Communication Technology Update and Fundamentals, 15th Edition by Jennifer H. Meadows, August E. Grant

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20

Telephony

William R. Davie, Ph.D.*

**BORSF Regents Chair of Communication, University of Louisiana, Lafayette

Telephony conveys voice and data between distant places by wired or wireless channels. Today that means smartphones encased in handsets of “Gorilla Glass” and aluminum with hoops of electromagnetic energy that meet almost any need in communications and commerce: from texting friends to banking online; from securing health care to calling for a Uber or Lyft; from earning a diploma to finding a job. We live in a global-mobile age, where the services for voice, messaging, and broadband technology drive innovation and investment. The mobile telephone’s preeminence has ushered in new ways of thinking, not just about telephony but about ...

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