发明名称 |
Telephone system for communication through multiple lines |
摘要 |
A telephone system communicating through a plurality of external telephone lines includes base phones connected to respective ones of the plurality of telephone lines and a cable connected so as to allow communication among a plurality of terminals. Each base phone includes a dual-line adaptation function unit for establishing communication through the plurality of telephone lines and a single-line adaptation function unit for establishing communication through a telephone line connected to the base phone itself. Any one of the dual-line adaptation function unit and the single-line adaptation function unit is selectively enabled in response to an external operation. Therefore, the single base phone attains a function as a single-line-adapted model establishing communication through the telephone line connected to the base phone itself or a multiple-line-adapted model establishing communication through the plurality of telephone lines.
|
申请公布号 |
US7724883(B2) |
申请公布日期 |
2010.05.25 |
申请号 |
US20050033879 |
申请日期 |
2005.01.13 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
KOBAYASHI FUMIAKI;NISHIO TATSUYA |
分类号 |
H04M1/00;H04M1/725;H04M1/733;H04M11/00;H04Q7/20 |
主分类号 |
H04M1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|