REROUTING AN INCOMING CALL TO A PORTED TELECOMMUNICATIONS TERMINAL

摘要

An incoming call towards a ported telecommunications terminal (120) is routed (210) to the donor telecommunications node associated with the dialed directory number without first (40, 180) performing a number portability database (NP-DB) (90) query. Upon determining that the telecommunications terminal associated with the specified called party directory number has been ported, a signal (270) querying the NP-DB is transmitted by the donor node. In response (280), the NP-DB provides a network address representing the gaining telecommunications node (70, 200) to the next-to-last (N-1) switch (100). Utilizing the received network address, the N-1 switch releases the first call connection (210) with the donor telecommunications node and reroutes the call connection to (250) the gaining telecommunications node associated with the received network address.