发明名称 |
METHOD FOR RELEASING UNNECESSARY TRUNKS FROM A TELEPHONE CALL |
摘要 |
A method for recognizing and releasing unnecessary trunk lines in a private branch exchange telephone system including a plurality of switching nodes, each having a unique node identification number where each pair of nodes is connected by a plurality of trunk lines, includes steps for (a) compiling a telephone call identifier list containing node identification numbers and an associated trunk call identification number used in defining ant connecting a call path between a calling party and a called party, (b) examining a call identifier list at each of the switching nodes for information indicative of redundant node identification numbers, and (c) releasing the unnecessary trunk lines between the redundant node identification numbers.
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申请公布号 |
CA2127005(A1) |
申请公布日期 |
1994.12.31 |
申请号 |
CA19942127005 |
申请日期 |
1994.06.29 |
申请人 |
HIRSOHN, PAUL;DAYNER, DAVID;LACKER, VIRGINIA |
发明人 |
HIRSOHN, PAUL;DAYNER, DAVID;LACKER, VIRGINIA |
分类号 |
H04M3/54;H04M3/00;H04M3/42;H04M11/00;H04Q3/00;H04Q3/58;H04Q3/66;(IPC1-7):H04Q3/42 |
主分类号 |
H04M3/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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