Method and apparatus for alternate destination routing for switching egress customers
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United States of America Patent
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-
Jan 2, 1996
Grant Date -
N/A
app pub date -
Dec 27, 1994
filing date -
Dec 27, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Redirection of calls from a busy primary destination to a secondary destination of a switched egress alternate destination redirection (ADR) customer is performed in the absence of sufficient terminating line status information in the form of either a busy or free indication being provided to the originating switch which provides the ADR service feature capability. The originating switch infers that the primary destination is busy and redirects the call to the secondary destination accordingly if the time that passes since the inception of the call is greater than a predetermined interval in which the call has not been answered.
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