System and method for digital telephones on h.323 networks,申请号GB19990020236-传众专利搜索

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发明名称	System and method for digital telephones on h.323 networks
摘要
申请公布号	GB9920236(D0)	申请公布日期	1999.10.27
申请号	GB19990020236	申请日期	1999.08.27
申请人	SIEMENS INFORMATION AND COMMUNICATION NETWORKS INC	发明人
分类号	H04M1/253	主分类号	H04M1/253
代理机构		代理人
主权项
地址

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