| 摘要 |
<p>PURPOSE:To relieve the load of an exchange station by implementing gate station selection processing at inter-network connection and connection request transfer processing at busy state of the gate station by the gate station. CONSTITUTION:Exchange stations P1-P3 receiving a call request of inter-network connection from a terminal equipment T1 reference an inter-network connection routing table, select a representative gate station corresponding to a called destination network address in a called address and transfer a call request to the representative gate station, e.g. G1. The representative gate station G1 receiving the call request references a selection table of the gate station to uniformize a load between gate stations G1 and G2 to select an optimum gate station and retransfers the call request to an optimum gate station, e.g. G2. In order to uniformize the load among inter-network lines L11-L14, the optimum gate station G2 references a line selection table to select an optimum inter- network line. Thus, the load of the exchange station is relieved.</p> |
