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- Telephone_switchboard abstract "A telephone switchboard is a telecommunications system used in the public switched telephone network or in enterprises to interconnect circuits of telephones to establish telephone calls between the subscribers or users, or between other exchanges. The switchboard was an essential component of a manual telephone exchange, and was operated by one or more persons, called operators who either used electrical cords or switches to establish the connections.The electromechanical automatic telephone exchange, invented by Almon Strowger in 1888, gradually replaced manual switchboards in central telephone exchanges starting in 1919 when the Bell System adopted automatic switching, but many manual branch exchanges remained operational during the last half of the 20th century in offices, hotels, or other enterprises. Later electronic devices and computer technology gave the operator access to an abundance of features. In modern businesses, a private branch exchange (PBX) often has an attendant console for the operator, or an auto-attendant, which bypasses the operator entirely.".
- Telephone_switchboard thumbnail JT_Switchboard_770x540.jpg?width=300.
- Telephone_switchboard wikiPageExternalLink Telephone.
- Telephone_switchboard wikiPageExternalLink part1.html.
- Telephone_switchboard wikiPageID "28427".
- Telephone_switchboard wikiPageRevisionID "602435141".
- Telephone_switchboard hasPhotoCollection Telephone_switchboard.
- Telephone_switchboard subject Category:History_of_telecommunications.
- Telephone_switchboard subject Category:Telephone_exchanges.
- Telephone_switchboard type Central102994858.
- Telephone_switchboard type GeographicPoint108578706.
- Telephone_switchboard type Location100027167.
- Telephone_switchboard type Object100002684.
- Telephone_switchboard type PhysicalEntity100001930.
- Telephone_switchboard type Point108620061.
- Telephone_switchboard type TelephoneExchanges.
- Telephone_switchboard type Workplace104602044.
- Telephone_switchboard type YagoGeoEntity.
- Telephone_switchboard type YagoLegalActorGeo.
- Telephone_switchboard type YagoPermanentlyLocatedEntity.
- Telephone_switchboard comment "A telephone switchboard is a telecommunications system used in the public switched telephone network or in enterprises to interconnect circuits of telephones to establish telephone calls between the subscribers or users, or between other exchanges.".
- Telephone_switchboard label "Centralino".
- Telephone_switchboard label "Conmutación (redes de comunicación)".
- Telephone_switchboard label "Klappenschrank".
- Telephone_switchboard label "Standard téléphonique".
- Telephone_switchboard label "Telephone switchboard".
- Telephone_switchboard label "Телефонный коммутатор".
- Telephone_switchboard sameAs Klappenschrank.
- Telephone_switchboard sameAs Conmutación_(redes_de_comunicación).
- Telephone_switchboard sameAs Standard_téléphonique.
- Telephone_switchboard sameAs Centralino.
- Telephone_switchboard sameAs m.07173.
- Telephone_switchboard sameAs Q589666.
- Telephone_switchboard sameAs Q589666.
- Telephone_switchboard sameAs Telephone_switchboard.
- Telephone_switchboard wasDerivedFrom Telephone_switchboard?oldid=602435141.
- Telephone_switchboard depiction JT_Switchboard_770x540.jpg.
- Telephone_switchboard isPrimaryTopicOf Telephone_switchboard.
