The use of a central exchange was soon found to be even more advantageous than in telegraphy. A private branch exchange (PBX) in a business usually has an attendant console, or an auto-attendant function, which bypasses the operator.įollowing the invention of the telephone in 1876, the first telephones were rented in pairs which were limited to conversation between the parties operating those two instruments. Later electronic devices and computer technology gave the operator access to an abundance of features. Nevertheless, many manual branch exchanges remained operational into the second half of the 20th century in many enterprises. In 1919, the Bell System in Canada also adopted automatic switching as its future technology, after years of reliance on manual systems. The electromechanical automatic telephone exchange, invented by Almon Strowger in 1888, gradually replaced manual switchboards in central telephone exchanges around the world. The switchboard was an essential component of a manual telephone exchange, and was operated by switchboard operators who used electrical cords or switches to establish the connections. A telephone switchboard was a device used to connect circuits of telephones to establish telephone calls between users or other switchboards, throughout the 20th century.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |