METHOD AND SYSTEM FOR PROVIDING ANSWER SUPERVISION IN A SWITCHED TELEPHONE NETWORK,申请号EP19990902471-传众专利搜索

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发明名称	METHOD AND SYSTEM FOR PROVIDING ANSWER SUPERVISION IN A SWITCHED TELEPHONE NETWORK
摘要
申请公布号	EP1051864(A1)	申请公布日期	2000.11.15
申请号	EP19990902471	申请日期	1999.01.29
申请人	BELL CANADA	发明人	O'BRIEN, WILLIAM, G.
分类号	H04Q3/00;(IPC1-7):H04Q3/00	主分类号	H04Q3/00
代理机构		代理人
主权项
地址

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