| 摘要 |
<p>PURPOSE:To reduce the load to a call processing processor and to improve the use efficiency of network lines, a time division switch, or the like. CONSTITUTION:When D channel information from a packet terminal 1 received by a subscriber circuit 4 is X.15 packet information, it is outputted to a conversion control part 42, and subscriber-side packet control information of this packet information is converted to corresponding network-side packet control information based on preliminarily stored conversion and connection information, and it is outputted to a specific channel of a network line 501 through a fixed connection path 71. When D channel information from a network 3 received by a trunk circuit 5 is X.15 packet information, packet information is outputted to the conversion control part 42 through the fixed connection path 71, and network-side packet control information of this packet information is converted to corresponding subscriber-side packet control information, and it is outputted to a packet terminal 1.</p> |
