Patent ID: 7406165
Filing Date: 2008-07-29
Classification: H04Q

Abstract:
1. A telecommunications network comprising: an originating service switching point (SSP) configured to receive a call from a calling communication station intended for a network subscriber and to generate a call routing query in response to the received call; a terminating SSP associated with the network subscriber; interoffice trunk lines coupling the originating SSP and the terminating SSP; Direct Route Primary Rate Interface trunk groups coupling the originating SSP and the terminating SSP; and a signal control point (SCP) including an SCP database, the SCP in communication with the originating SSP and configured to receive the call routing query and, in response thereto, to derive a trunk route index from the SCP database, the trunk route index identifying a data trunk to a terminating switch associated with the network subscriber; the SCP returning to the originating SSP call routing information based on the derived trunk route index directing the call to a Direct Route Primary Rate Interface established at the originating SSP, wherein the SCP database further stores a capacity threshold associated with the network subscriber and, when traffic on the Direct Route Primary Rate Interface trunk groups exceeds the stored capacity threshold, the SCP returns to the originating SSP call routing-information routing the call to the terminating SSP using the interoffice trunk lines.