Electronic switching systems have eliminated the need for manual switching, and new systems automatically record information about the length and cost of calls into a computer that processes the billing statements. The monitoring and computing of charges on calls from pay telephones also have an automated function formerly performed by operators. Directory assistance operators answer inquiries by accessing computerized alphabetical and geographical directories. These switchboard, or PBX operators, connect interoffice or house calls, answer and relay outside calls, connect outgoing calls, supply information to callers, and record charges. Many also act as receptionists or information clerks, relaying messages or announcing visitors.
Operators also work in other settings.
Communication-center operators handle airport authority communication systems. For example, they use the public address system to page passengers or visitors. They also monitor electronic equipment alarms. Service advisors monitor conversations between operators and customers to observe the operator's behavior, technical accuracy, and adherence to company policies. The hours of PBX or switchboard operators generally are the same as those of other clerical workers in the firm.