Acme Packet, Inc. provides session border controller (SBC) solutions for network service providers. Its SBCs enable interactive communications service providers to offer secure interactive communications across multiple Internet protocol (IP) networks, including the separate IP networks that comprise wireline, wireless, and cable networks. These SBCs are deployed at the borders of IP networks, such as between two service providers; between a service provider and its business, residential, or mobile customers; or between a carrier’s network and its data center. The company’s SBCs act as the source and destination for signaling messages and media streams entering and exiting...