Switchboard operator

In the early days of telephony, companies used manual telephone switchboards, and switchboard operators connected calls by inserting a pair of phone plugs into the appropriate jacks. They were gradually phased out and replaced by automated systems, first those allowing direct dialing within a local area, then for long-distance and international direct dialing.

Description

A typical manual telephone switchboard has a vertical panel containing an array of jacks with a desk in front. The desk has a row of switches and two rows of plugs attached to cables that retract into the desk when not in use. Each pair of plugs was part of a cord circuit with a switch associated that let the operator participate in the call or ring the circuit for an incoming call. Each jack had a light above it that lit when the customer's telephone receiver was lifted (the earliest systems required the customer to hand-crank a magneto to alert the central office and, later, to "ring off" the completed call). Lines from the central office were usually arranged along the bottom row. Before the advent of operator distance dialing and customer direct dial (DDD) calling, a switchboard operator would work with their counterparts in distant central office to complete long-distance calls. Switchboard operators are typically required to have very strong communication skills.

Before the advent of automatic exchanges, an operator's assistance was required for anything other than calling telephones across a shared party line.