发明名称 Cordless telephone active-call enabled intercom
摘要 A method of using an intercom on a cordless telephone during an active call. The active call is put on hold while the intercom is in use. Once the call is re-activated, the intercom is shut off. This system may be designed for a cordless telephone with one handset or a plurality of handsets.
申请公布号 US2002107036(A1) 申请公布日期 2002.08.08
申请号 US20010777889 申请日期 2001.02.07
申请人 CANNON JOSEPH M.;JOHANSON JAMES A. 发明人 CANNON JOSEPH M.;JOHANSON JAMES A.
分类号 H04M1/725;(IPC1-7):H04Q7/20 主分类号 H04M1/725
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