Extending VoIP Across Network Boundaries
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Overview: VoIP border control addresses the technical challenges of direct packet interconnect between carriers and enterprises, carriers and consumers, and for carrier peering. Voice over IP (VoIP) is here, its proven, and deployments are expanding. But challenges remain for extending VoIP services between carrier networks and private networks (either residential or enterprise), and for peering between carrier networks. Up until now, connections between VoIP networks have been made primarily via TDM mechanisms. This strategy isolates VoIP networks from each other and circumvents many interoperability issues, but it also adds unnecessary service limitations, cost, and complexity.