Telchemy and Acterna, one a provider of real-time VoIP fault and performance management technology based in Suwanee, Ga., the other a global provider of cable network test and management solutions, announced this week that Acterna will be a co-sponsor of Telchemy's VoIPTroubleshooter.com Web site.

Established in 2003, the free site contains more than 60 pages of information and online diagnostic tools for network managers to use when investigating and resolving IP-related call quality problems. Acterna plans to supply valuable content on test and management solutions for VoIP, as well as research information, by submitting articles, application notes and white papers. In addition to extensive information on VoIP issues and problems, VoIPTroubleshooter.com features an Open Speech Repository, an IP Network Impairment Simulator and a popular industry Forum. The Open Speech Repository provides high quality audio recordings of speech files in American and British English, Mandarin (Chinese), French, Hindi and other languages that test engineers can use for testing and related applications without any restrictions, except for source credit. An important feature of the Open Speech Repository is that industry and academic researchers can contribute speech files to the site.

The site's downloadable IP Network Impairment Simulator provides network administrators with a scenario-based method of modeling packet-related network problems, such as jitter and delay, LAN/WAN congestion and backbone and route changes. This method enables administrators and technicians to simulate a network environment with congestion under realistic conditions.

Founded in 1999, Telchemy claims to be the first company to provide voice quality management technology that considers the effects of time-varying network impairments and the perceptual effects of time-varying call quality.

Telchemy also announced this week that it has added a new Video Module to its VQmon family of call quality monitoring and analysis software. The VQmon/SA-VM (Video Module) adds real time monitoring and diagnostics for streaming video and next-generation video conferencing applications to Telchemy's stream analysis product. The new module supports the analysis of ISO MPEG standards and ITU H.26x video Codecs and features Video Transmission Quality Metrics and Video Quality Scores.