Method, communication system and central group administration unit for group calls,申请号EP19980121534-传众专利搜索

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发明名称	Method, communication system and central group administration unit for group calls
摘要
申请公布号	EP0923255(A3)	申请公布日期	2000.04.26
申请号	EP19980121534	申请日期	1998.11.17
申请人	SIEMENS AKTIENGESELLSCHAFT	发明人	HULTSCH, WOLFGANG;PRUESER, JUERGEN
分类号	H04W4/06;H04W4/08;(IPC1-7):H04Q7/22	主分类号	H04W4/06
代理机构		代理人
主权项
地址

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