| 摘要 |
<p>A duty server (12) may be connected to a number of end users (1-3) via a telecommunication network (26). There are separate connection paths (4-6) through the network passing via a number of receivers (7-9). The receivers may be used for calculation of call charges. The circuit incorporates several filter circuits (13-15), to assist in routing calls, and a registering-sorting circuit (19). This is connected to a data ordering circuit (20) and a data bank (25) and an output circuit (21).</p> |
