Printer

摘要

A printer control system which facilitates monitoring of a telephone line and recognition of a predetermined series of digits as they are being dialed. An alphanumeric display displays the digits printed by a printer and which otherwise would be hidden by the printer until the complete number has been dialed and/or the call terminated. The system automatically monitors a subscriber's line, and provides an alarm when a predetermined sequence of digits have been dialed, allowing the operator to divert his attention to other tasks.