Search results
Results from the WOW.Com Content Network
In 1931, the American Telephone and Telegraph Company (AT&T) introduced the Teletypewriter Exchange Service (TWX) which operated over telephone circuits between devices located directly in private businesses. This enabled a secretary to type and send a written message to another TWX machine elsewhere, without using Western Union services, or ...
The telephone played a major communications role in American history from the 1876 publication of its first patent by Alexander Graham Bell onward. In the 20th century the American Telephone and Telegraph Company (AT&T) dominated the telecommunication market as the at times largest company in the world, until it was broken up in 1982 and replaced by a system of competitors.
In countries that had a PTT unit of government, typically the vast majority of forms of distribution of information fell under the auspices of the PTT, whether that be the delivery of printed publications and individual letters in the postal mail, the transmission of telephonic audio, or the transmission of telegraphic on-off signals, and in some countries, the broadcast of one-way (audio ...
Phone support is available for account management and password reset help, Mon-Fri: 8am-12am ET; Sat: 8am-10pm ET. For additional hours of operation for different services visit our support options page for contact info.
The Ohio Bell Telephone Company, now doing business as AT&T Ohio, is the Bell Operating Company serving most of Ohio and parts of West Virginia. It is a wholly owned subsidiary of AT&T . Its headquarters is the Ohio Bell Building at 750 Huron Road, Cleveland , Ohio , and formerly had a secondary headquarters at 150 East Gay Street, Columbus ...
[77]: 276 Messages (i.e. telegrams) sent by telegraph could be delivered by telegraph messenger faster than mail, [40] and even in the telephone age, the telegram remained popular for social and business correspondence. At their peak in 1929, an estimated 200 million telegrams were sent.
This 1911 advertisement from Seattle shows phone numbers from two different phone companies; the exchanges were not interconnected. An independent telephone company was a telephone company providing local service in the United States or Canada that was not part of the Bell System organized by American Telephone and Telegraph. Independent ...
Telephony (/ t ə ˈ l ɛ f ə n i / tə-LEF-ə-nee) is the field of technology involving the development, application, and deployment of telecommunications services for the purpose of electronic transmission of voice, fax, or data, between distant parties.