METHOD AND APPARATUS FOR THE BILLING OF VALUE-ADDED COMMUNICATION CALLS
摘要
申请公布号
EP0452591(A3)
申请公布日期
1992.05.27
申请号
EP19900313462
申请日期
1990.12.11
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
BENYACAR, IRVING;COURTE, ELIZABETH V.;FRIEDES, ALBERT;HOWE, THOMAS P.;KAUFMAN, DAVID D.;MAGURA, JAMES R.;REES, RACHELLE E.;STEINERT, PAMELA A.;VENKATARAMANA, MOHAN;ZHOU, YONG
