Telephone - Wikipedia 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
Telephone | History, Definition, Invention, Uses, Facts | Britannica Telephone, an instrument designed for the simultaneous transmission and reception of the human voice It has become the most widely used telecommunications device in the world, and billions of telephones are in use
TELEPHONE中文 (简体)翻译:剑桥词典 I decided to telephone the doctor She telephoned all the major donors to ask for more cash He telephoned her regularly with news from Cyprus
How Telephones Work - HowStuffWorks Telephones are one of the most important and useful modern inventions Learn about telephone operation, creating a telephone network and tones and bandwidth
Telephone - New World Encyclopedia The telephone (or phone) (from Greek: tele = far away; phone = voice) is a telecommunications device that is used to transmit and receive sounds (most commonly voice and speech) across distances
History of the telephone - Wikipedia The early history of the telephone became and still remains a confusing morass of claims and counterclaims, which were not clarified by the huge number of lawsuits filed in order to resolve the patent claims of the many individuals and commercial competitors