| 摘要 |
PURPOSE:To process totally telephone charge management of relating stations by connecting a telephone charge management device of a slave station and an electronic computer installed to a master station through a general subscriber line. CONSTITUTION:A general subscriber line 10 and an MODEM trunk line interface 204 are connected by a key circuit 207 and the general subscriber line 10 and an MODEM trunk line interface 104 are connected by a key circuit 107. A call is given from the interface 204 to the line 10 to call the MODEM interface 104. A telephone charge data transmission preparation end signal is given from the interface 104 to a private branch of exchange (PBX)101. Then the PBX101 starts a telephone charge managing device 103, from which a telephone charge data is inputted to an electronic computer 206 via the interface 104, the line 10 and the interface 204. |
