发明名称 |
Lan telephone system |
摘要 |
<p>A distributed private branch telephone exchange (PBX) including a local area network carrying telephony traffic, an interface to the PSTN and a station interface connecting to a telephone device transmitting telephony over the local area network. The distributed PBX may contain a number of multi-port modules connected over a local area data network. The multi-port modules convert between synchronous and asynchronous signals and connect between a telephony environment, such as a telephone device, a local area network, and a personal computing device. The distributed PBX also includes PBX software and a graphical user interface (GUI) which facilitate the management of various PBX functions. <IMAGE></p> |
申请公布号 |
EP0829995(A2) |
申请公布日期 |
1998.03.18 |
申请号 |
EP19970307198 |
申请日期 |
1997.09.16 |
申请人 |
SPHERE COMMUNICATIONS INC. |
发明人 |
RIEMANN, ERNST B.;WEIR, ALAN T.;VYSKOCIL, RANDALL;NIESMAN, DAVID F.;KERGOZOU, M.A. |
分类号 |
H04Q3/58;H04L12/24;H04L12/56;H04M3/00;H04M3/42;H04M3/428;H04M3/533;H04M3/54;H04M3/56;H04M7/00;H04M7/12;H04Q3/00;H04Q3/72;H04Q11/04;(IPC1-7):H04M3/00;H04L12/46 |
主分类号 |
H04Q3/58 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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