Method for verification of sender address in voice communication connection, involves saving sender address in list of second subscriber whereby evaluation of answer to acknowledgment inquiry by terminal of second subscriber takes place

摘要

Method involves verification of the sender address, transmitted in the course of making the connection enquiry, before making the voice communication connection. Verification takes place via an acknowledgment inquiry of second subscriber (B) terminal by the transmitted sender address, and the evaluation of an answer to the acknowledgment inquiry by the terminal of the second subscriber (B) takes place. Independent claims are also included for the following: (A) an arrangement for verification; (B) a device for verification; and (C) a terminal.