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Telephone switchboard - Wikipedia, the free encyclopedia (801 words) |
 | A switchboard (also called a manual branch exchange) is a device used to manually connect a group of telephones from one to another or to an outside connection. |
| The long distance operator would plug into the trunk for the distant city, and the inward operator in the distant city would answer, obtain the number from their local information operator, and ring the call. |
| If the number was in a distant city, the operator would call the inward operator in the destination city, and ask her to try the number, or to test a line to see if it was busy or out of order. |
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