telephone
Sign in to savethumb|An old rotary dial telephone thumb|AT&T push button telephone made by [[Western Electric, model 2500 DMG black, 1980]]
AI overview
A telephone is a device that allows people to communicate with each other over distances by transmitting sound through electrical signals. Telephones have been important tools for connecting people across the world, evolving from rotary dial models to push-button versions over many decades.
AI-generated from the Wikipedia summary — may contain errors.
Wikidata facts
- Subclass of
- telecommunications device
- Has part
- telecommunications network
- Image
- Telefon BW 2012-02-18 13-44-32.JPG
Show 7 more facts
- P366
- dialogue
- P4733
- ringtone
- P5008
- Wikipedia:Vital articles/Level/4 (2022)
- P2184
Article
17 sectionsContents
- Early history
- Timeline of early development
- Early commercial instruments
- Sound-powered telephones
- Principle of operation
- Applications
- Digital telephones and voice over IP
- Cordless telephones
- Base station
- Mobile phones
- Smartphones
- Mobile phone usage
- Satellite phones
- See also
- References
- Further reading
- External links
thumb|An old rotary dial telephone thumb|AT&T push button telephone made by [[Western Electric, model 2500 DMG black, 1980]]
A telephone, commonly shortened to phone, is a telecommunications device that enables two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user. The term is derived from and (, voice), together meaning distant voice.