Abstract: A method and system for testing at least one link in a communications network. The system includes first and second analyzer units that are configured to test an existing link in the network. Alternatively, the first and second analyzer units may be configured to establish and test a link between them. A computer remotely controls the first and second analyzer units to perform testing of various communication parameters, such as packet loss and latency. Each analyzer unit may be configured to collect data over a predetermined duration to establish a network baseline of operation, which may be used to detect future network malfunctions. The computer estimates the deviation of communication parameters from the network baseline.

Abstract: A method and system for analyzing a public switched communications network from a remote place via the public Internet. The system comprises an access device which collects data from one or more links in a public switched communications network. The system further includes a server computer which receives the collected data from the access device via a dedicated network or the Internet. The server computer executes one or more applications to perform protocol analysis based on the received data. A client computer executing a Web browser may be used to communicate with the server computer via the Internet and access the outcome of the protocol analysis.