发明名称 Trunk line exchange system
摘要 The present trunk line exchange system is capable of coping with the busy hour calls without falling into congestion by executing re-distribution of the number of communication lines to the busy region from the quite region, which results in yielding efficient utilization of the communication lines. The system is also capable of avoiding the congestion of the exchange system, since it is not necessary to conduct a series of operations such as recalls/alternative line processing.
申请公布号 US6301343(B1) 申请公布日期 2001.10.09
申请号 US19980130481 申请日期 1998.08.07
申请人 NEC CORPORATION 发明人 KUMAKURA HIROSHI
分类号 H04M3/22;H04M3/00;H04Q3/00;H04Q3/545;H04Q3/64;(IPC1-7):H04M15/00 主分类号 H04M3/22
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