Appeal No. 1998-1950
Application No. 08/584,517
BACKGROUND
The invention is directed to a system and method for routing a telephone call to an
alternate termination when the call cannot be completed to an originally selected
termination. Claim 18 is reproduced below.
18. A method of redirecting a telephone call from a first termination in a
telecommunications network to a second termination in said telecommunications
network, said telecommunications network including a plurality of interconnected
switches, wherein said call enters the network at an originating switch, each of said
terminations being coupled to a terminating switch, the method comprising the
steps of:
(a) routing said call from said originating switch to a first terminating switch
coupled to said first termination;
(b) after routing said call to said first terminating switch, determining, at said
originating switch, whether said call is completed to said first termination;
(c) upon determining that said call has not been completed, releasing said
call from said first terminating switch and transmitting from said originating switch to
a network database a request for an indication of a second termination, said
request having an indication of said first termination and of the condition
encountered;
(d) using information relating to why said call was not successfully
completed at said first termination and said condition encountered to select from at
least one set of overflow statements providing instructions for overflow routing said
second termination at said network database;
(e) transmitting from said network database to said originating switch said
indication of said second termination; and
(f) upon receiving said indication of said second termination from said
network database, routing said call to a second terminating switch coupled to said
second termination.
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