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- Telephone Switchboard Drop Signal, 1900-1925 - Before long-distance direct dialing became widespread in the 1960s, switchboards connected calls. When a caller picked up the phone, drop signals would indicate to an operator that someone was on the line. The operator would ask them for the number they would like to connect to and then manually connect the caller's line to the recipient.
- 1900-1925
- Collections - Artifact
Telephone Switchboard Drop Signal, 1900-1925
Before long-distance direct dialing became widespread in the 1960s, switchboards connected calls. When a caller picked up the phone, drop signals would indicate to an operator that someone was on the line. The operator would ask them for the number they would like to connect to and then manually connect the caller's line to the recipient.