METHODS FOR PROVIDING PREPAID TELEPHONY SERVICE VIA AN INTERNET PROTOCOL NETWORK SYSTEM,申请号EP20000992146-传众专利搜索

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发明名称	METHODS FOR PROVIDING PREPAID TELEPHONY SERVICE VIA AN INTERNET PROTOCOL NETWORK SYSTEM
摘要
申请公布号	EP1232648(A4)	申请公布日期	2004.05.26
申请号	EP20000992146	申请日期	2000.11.08
申请人	MCI WORLDCOM, INC.	发明人	DONOVAN, STEVEN, R.
分类号	H04M3/42;H04L12/14;H04L29/06;H04M3/00;H04M11/00;H04M15/00;H04M17/00;(IPC1-7):H04M17/00;H04M7/00	主分类号	H04M3/42
代理机构		代理人
主权项
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