Patent ID: 6330323
Filing Date: 2001-12-11
Classification: H04Q

Abstract:
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, wherein step d) further comprises the steps of:selecting an overflow tree set from said set of overflow statements based on said original termination;selecting an active overflow tree from said selected overflow tree set;selecting a segment of said selected tree based on said original termination of said call;comparing the condition encountered with a condition specified by said selected segment; andselecting an action and an object specified by said selected segment, if said condition encountered matches said condition specified by said selected segment;e) transmitting from said network database to said originating switch said indication of said second termination; andf) 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.