Patent ID: 8428233

Claim:
An Internet protocol query system for Internet protocol private branch exchanges, the system comprising: a private branch exchange that is connected to the public switched telephone network for receiving a call setup request, the private branch exchange not being enabled for receiving calling name delivery information from a telecommunications; circuit, wherein the private branch exchange includes an internal name delivery database; at least one of an incumbent local exchange carrier switch and a competitive local exchange carrier switch in communication with the private branch exchange, the at least one of an incumbent local exchange carrier switch and a competitive local exchange carrier switch having the telecommunications circuit not enabled for calling name delivery information retrieval, wherein the internal name delivery database is independent of the at least one of an incumbent local exchange carrier switch and a competitive local exchange carrier switch; a network in communication with the private branch exchange; and an external calling name delivery database, which is external to the private branch exchange and which is independent of the at least one of an incumbent local exchange carrier switch and a competitive local exchange carrier switch, in communication with the network for receiving calling name delivery queries from the private branch exchange based on the call setup request, wherein, in response to a determination that an incoming telephone number associated with the call setup request does not require calling name delivery information, the private branch exchange is configured to withhold sending calling name delivery queries to both the internal name delivery database and the external calling name delivery database.