# telephony

/ˈtɛɫəˌfoʊni/ (US) · /təlˈɛfənˌi/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/telephony
Updated: 2026-05-19

## Definition

the use of telephone systems to make calls. It is a technical word for the technology and methods used to send sound over long distances.

For teachers: the technology and methods used for the transmission of voice or data over a distance via telephone lines or wireless networks.

## Examples

- The company is upgrading its telephony system to support video calls.
- Advances in telephony have made it possible for people to communicate instantly across the globe.
- The transition from traditional copper wiring to fiber-optic cables has fundamentally transformed modern telephony, enabling higher data speeds and more reliable connections for both residential and commercial users.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.