Abstract: The disclosed systems and methods provide a centrally located call manger for authorizing calls from a caller to a recipient. In particular, the systems and methods relate to using a centralized store of authorization parameters relating to one or more appliances, callers, recipients, or content types. Packet-based communications between a caller and a recipient can be allowed or denied based on the stored authorization data.

Abstract: The invention is directed to systems and methods for testing performance of a packet-based network. In particular, the invention can be used to measure latency, packet loss, jitter and out-of-sequence packets. To measure the one-way timing issues such as the one-way latency, a highly accurate clock can be placed at the packet source and destination so that the time difference can be calculated with accuracy.