System for effectively using ISDN backup channel
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United States of America Patent
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Sep 9, 2003
Grant Date -
N/A
app pub date -
Dec 28, 1998
filing date -
Jul 10, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A node of #B selects an ISDN line for backup in which a bulk transfer by a plurality of B channels is performed, out of a plurality of ISDN lines which can be set by a node of #A, by way of the pilot selection function on the ISDN switching network side. At this time, two nodes of #A and #B exchange both the child number of an ISDN line to be selected and the number of B channels to be transferred in bulk as user-user information in the D channel message of the ISDN line with each other, and select an ISDN line based on the information.
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