发明名称 SYSTEM FOR SWITCHING OVER A VOICE CALL
摘要 A system and method for switching a voice call from an Instant Messaging (IM) based voice network to a cellular voice network. A telephone adapted to switch a voice call from an Instant Messaging (IM) based voice network to a cellular voice network.
申请公布号 US2008152117(A1) 申请公布日期 2008.06.26
申请号 US20060615636 申请日期 2006.12.22
申请人 TP LAB INC. 发明人 HO CHI FAI;CHIU SHIN CHEUNG SIMON
分类号 H04M7/00 主分类号 H04M7/00
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