发明名称 Method and apparatus for providing asynchronous audio messaging
摘要 The present invention provides audio messaging in a communications network, e.g., a VoIP network. More specifically, the present invention establishes a non-duplex communication link between a first subscriber and a second subscriber. Audio messages are transmitted between the first subscriber and the second subscriber via the non-duplex communication link.
申请公布号 US7593392(B1) 申请公布日期 2009.09.22
申请号 US20050049511 申请日期 2005.02.02
申请人 AT&T CORP. 发明人 HANSON KARRIE;PURDY KERMIT HAL;KARAM GERALD
分类号 H04L12/66 主分类号 H04L12/66
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