Definition of telephony in English:

telephony

Syllabification: te·leph·o·ny
Pronunciation: /təˈlefənē, ˈteləˌfōnē
 
/

noun

The working or use of telephones.
More example sentences
  • Wireless telephony had achieved transmission distances of several hundred miles.
  • The increase was primarily due to growth in broadband telephony and high-speed data.
  • It may be possible for portable multimedia devices to be hooked up to a combination of DAB and mobile telephony networks.

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Definition of telephony in:

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Word of the day grammarian
Pronunciation: grəˈmɛːrɪən
noun
a person who studies and writes about grammar