Method for interface ISDN private automatic branch exchange and local exchange
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United States of America Patent
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-
Jul 12, 2005
Grant Date -
Mar 14, 2002
app pub date -
Aug 17, 2001
filing date -
Aug 18, 2000
priority date (Note) -
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Abstract
A method for interface an IPABX and a local exchange includes the steps of: processing a call originated from an IPABX by a local exchange having one discernible individual by binding a plurality of data transmission lines, that is, a data transmission line trunk group; and processing a call destined to the IPABX through the local exchange. Since the directory number can be managed by a group name, stepping up from the method for fixing the directory number to the line, the expense for the line can be reduced. In addition, the problem of separation between the origination line and the destination line as in the conventional method that the trunk line and the PRI line are together used is settled. Moreover, since there is no need to allocate an additional signaling point, an expense possibly incurred for the allocation of a signaling point and consumption of the signaling point resource can be prevented.
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