Patent ID: 6466792
Filing Date: 2002-10-15
Classification: H04Q

Abstract:
A method for effectuating selective triggerless local number portability (TLNP) in a telecommunications network having a cellular network portion and a wireline network portion, comprising the steps of:receiving a signaling message in a signaling node from a Mobile Switching Center (MSC) disposed in said cellular network portion, said signaling message being effectuated on a select link set coupled to said signaling node and including a dialed number, wherein said select link set is identified as enabled for a triggerless local number portability (TLNP) process; determining in said signaling node if a predetermined portion of said dialed number is marked as portable; if said predetermined portion of said dialed number is not marked as portable, forwarding said signaling message as originally received by said signaling node to said wireline network portion; otherwise, determining if said dialed number comprises a ported number; if said dialed number is not a ported number, marking said signaling message to indicate that said signaling message is a dipped signaling message and forwarding said dipped signaling message to said wireline network portion; otherwise, determining if a Destination Point Code (DPC) associated with said signaling message is located in a database table coupled to said signaling node; if not, performing the following steps in said signaling node: (i) moving said dialed number to a select parameter location of said signaling message; (ii) determining a Location Routing Number (LRN) for said dialed number; (iii) substituting said LRN for said dialed number in said signaling message; (iv) marking said signaling message to indicate that said signaling message is a dipped signaling message; and (v) forwarding said dipped signaling message to a destination disposed in said wireline network portion as indicated by said DPC; and otherwise, if said DPC is located in said database table coupled to said signaling node, performing the following steps in said signaling node: (i) determining an LRN for said dialed number; (ii) determining if said LRN matches a select LRN associated with said DPC; and (iii) if so, moving said dialed number to said select parameter location of said signaling message, substituting said LRN for said dialed number in said signaling message, marking said signaling message to indicate that said signaling message is a dipped signaling message, and forwarding said dipped signaling message based on said LRN to a destination identified by said DPC disposed in said wireline network portion.