System for printing telephone call data on telephones or telephone centralites (Machine-translation by Google Translate, not legally binding)

摘要

System for printing telephone call data in telephones or telephone exchanges, characterized in that it can register the complete number including all the prefixes, the one called, the time and minutes of the call initiation and the hour and minutes of the end of the call or the time, in minutes between the initiation of the call until the end of the telephone conference. (Machine-translation by Google Translate, not legally binding)