发明名称 Method and system for sending a data message to a calling phone while communicating with a first phone
摘要 The present invention provides a method and communication system for sending a data message from a called phone to a calling phone while maintaining an active communication between the called phone and a first phone. The calling phone sends a call request to the called phone while the called phone is involved in an active communication with the first phone. The called phone sends a data message to the calling phone in response to the call request. The data message is sent while maintaining an active call with the first phone, so that the first phone is not placed "on hold".
申请公布号 US6850604(B2) 申请公布日期 2005.02.01
申请号 US20010871266 申请日期 2001.05.31
申请人 LUCENT TECHNOLOGIES INC. 发明人 CANNELL LYNELL EARLINE;HENRIKSON ERIC HAROLD;SAND DONNA MICHAELS
分类号 H04L12/66;(IPC1-7):H04M11/00 主分类号 H04L12/66
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