Patent ID: 6647113
Filing Date: 2003-11-11
Classification: H04Q

Abstract:
A universal triggerless number portability (TNP) routing node comprising:(a) a first communication module for receiving a first message from a first end office over a first communications network, the first message including a dialed number; (b) a number portability (NP) database containing routing numbers (RNs) for signaling points serving ported subscribers; (c) a home routing number (HRN) process for receiving the first message from the first communication module, determining whether a first routing number (RN) in the first message is associated with a signaling point in a home network, and for forwarding the first message for further number portability processing only if the first RN is associated with a signaling point in the home network; and (d) a triggerless number portability process for receiving the first message from the HRN process, analyzing the first message for the presence of a first parameter for storing number portability status information, wherein, if the first parameter is determined to be present, the triggerless number portability process is adapted to determine whether to perform a lookup in the number portability database based on the first parameter, and wherein, if the first parameter is determined not to be present, the triggerless number portability process is adapted to analyze the first message for the presence of a second parameter for storing number portability status information, the second parameter being different from the first parameter, and, if the second parameter is present, to determine whether to perform the lookup in the number portability database based of the second parameter.