发明名称 |
Local control of call features in a telephone system |
摘要 |
A residential phone system allows for local control of call features from any phone extension. The phone system may include a microcontroller that communicates along the phone lines at a non-utilized frequency to several extension phones in a residence. The microcontroller permits each phone to control call features such as call waiting, conference calling, paging, or other features. A control box may be included at any or all of the extension phones to provide a convenient user interface to access the call features.
|
申请公布号 |
US2002141556(A1) |
申请公布日期 |
2002.10.03 |
申请号 |
US20010820564 |
申请日期 |
2001.03.28 |
申请人 |
CLAPPER EDWARD O.;GAMBIL KEVIN P. |
发明人 |
CLAPPER EDWARD O.;GAMBIL KEVIN P. |
分类号 |
H04M1/247;H04M1/723;H04M1/738;H04M3/42;H04M3/428;H04M3/56;H04Q1/44;(IPC1-7):H04M3/42 |
主分类号 |
H04M1/247 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|