Acterna LLC

Jason Lee Davis

David John Boyes

Michael Thad Ward

Bill Michael Kowalkowski

A method and apparatus for testing a VoIP telephone line are provided, the method including determining which of a plurality of VoIP call control protocols and/or CODECs is compatible with the telephone line, and conducting a series of tests on the telephone line in accordance therewith. The method and apparatus also includes steps and the means to connect to a network and capturing a stream of data therefrom to determine configuration settings of a VoIP telephone connected thereto to facilitate the previous testing.

Voice over internet protocol (VoIP) testing

A direct way to measure network delay of a packet switched network uses a ping signal injected into the voice stream at a source telephone. The ping signal travels together with the voice stream to a destination telephone. The destination telephone detects the ping signal and returns it to the source telephone through the packet switched network. The source telephone detects the return ping signal sent by the destination telephone and calculates the network delay between the two telephones based on the difference between the time of transmitting the ping signal and the time of detecting the return ping signal. As the ping signal travels in the same path as the voice stream, the network delay between the two telephones is calculated directly and accurately.

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Roanoke, VA, United States of America

Jason Lee Davis