Patent ID: 8031856
Filing Date: 2011-10-04
Classification: H04M

Abstract:
1. A method of routing a call toward a destination communications device, the method comprising: providing a host switch in a voice over internet protocol (VoIP) network communicably coupled with a plurality of remote switches and with a public switched telephone network (PSTN), wherein each of the remote switches is located on one or more remote networks distinct from the VoIP network and the PSTN; receiving a call from the PSTN with the host switch, the call having signaling comprising a location routing number field, wherein the location routing number field comprises a location routing number; identifying, by the host switch, a target remote switch of the plurality of remote switches that is associated with the location routing number, wherein identifying the target remote switch of the plurality of remote switches that is associated with the location routing number comprises querying a location routing number (LRN)/telephone number (TN) database within the VoIP network to identify the target remote switch that corresponds with at least a portion of the location routing number; and sending the call to the target remote switch based on the identification such that the call is transmitted to the destination communications device at least in part over one of the remote networks.