1-chip microcomputer and ic card using same

摘要

A personal information verification method in a call center is provided. The method comprises: (1) a process of connecting a telephone; (2) a process wherein a telephone number research device sends a SETUP message to an ISDN; obtains a message sent in reply thereto from the ISDN and performs a clear sequence; and analyzes the message obtained from the ISDN; (3) a process in which if the telephone number is determined to be null, the telephone number research device notifies an operator terminal of such determination; and (4) a process in which the notice, sent to the operator terminal to notify that the telephone number is null, is displayed on a screen of the operator terminal having received the notice, and thereby informed to the operator responding to the customer.