Patent ID: 8228904
Filing Date: 2012-07-24
Classification: H04L,H04M

Abstract:
1. An apparatus comprising: a memory; and a processor in communication with the memory, the memory including computer code executable with the processor, wherein the computer code is configured to: transmit, from the apparatus over a packet-switched communications network to a destination node that claimed ownership of a destination telephone number, proof of knowledge of at least one attribute of at least one public switched telephone network (PSTN) call initiated to the destination telephone number over a PSTN prior to the transmission of the proof of knowledge of the at least one attribute of the at least one PSTN call, the at least one attribute of the at least one PSTN call demonstrating knowledge of the at least one PSTN call; and receive, at the apparatus, from the destination node that claimed ownership of the destination telephone number, an identity of a destination Voice-over-Internet-Protocol (VoIP) call agent reachable at the destination telephone number in response to the transmission of the proof of knowledge of the at least one attribute of the at least one PSTN call initiated to the destination telephone number.