发明名称 Active-call intercom-enabled cordless telephone
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 US8131308(B2) 申请公布日期 2012.03.06
申请号 US20010777889 申请日期 2001.02.07
申请人 CANNON JOSEPH M.;JOHANSON JAMES A.;AGERE SYSTEMS INC. 发明人 CANNON JOSEPH M.;JOHANSON JAMES A.
分类号 H04W4/00;H04M1/725 主分类号 H04W4/00
代理机构 代理人
主权项
地址
您可能感兴趣的专利