A method of routing a call to a destination communications device (114, 116), the method comprising: providing a host switch in a voice over internet protocol network, the host switch communicably coupled with a plurality of remote switches and with a public switched telephone network, wherein said host switch and said remote switches are distinct and each said remote switch is located on one or more remote networks distinct from the voice over internet protocol network and the public switched telephone network; receiving by the host switch a call from the public switched telephone network, 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, said identifying based on said 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 / telephone number database within the voice over internet protocol network to identify the target remote switch that corresponds with at least a portion of the location routing number, the location routing number / telephone number database comprising a record associating a said remote switch with at least a portion of a 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 (114, 116) at least in part over one of the remote networks. providing a host switch in a voice over internet protocol network, the host switch communicably coupled with a plurality of remote switches and with a public switched telephone network, wherein said host switch and said remote switches are distinct and each said remote switch is located on one or more remote networks distinct from the voice over internet protocol network and the public switched telephone network; receiving by the host switch a call from the public switched telephone network, 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, said identifying based on said 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 / telephone number database within the voice over internet protocol network to identify the target remote switch that corresponds with at least a portion of the location routing number, the location routing number / telephone number database comprising a record associating a said remote switch with at least a portion of a 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 (114, 116) at least in part over one of the remote networks.