| 摘要 |
<p>A digital switching system connecting buses with incompatible protocols and a telephone answering system and private automatic branch exchange with integrated voice and textual message recording. The digital switching system (10) permits a digital switching matric (12) having an input bus and an output bus to connect information selectively therebetween in response to control signals applied to switches of the switching matrix. A plurality of information systems (18, 20 and 22) each having a different bus protocol are electrically connected to the input and output buses of the switching matrix to permit information transmitted on a conductor of any of the information buses to be received by another conductor of any of the information buses through the input bus, the switching matrix and the output bus. A host processor controls the plurality of information systems, and may be used to commonly control textual message and voice message recording systems within a telephone answering system and commonly control telephony functions and textual message and voice recording systems within a PABX.</p> |
