Residential VoIP and IPTV service providers will now have a new choice for testing the quality of their services. Voice and VoIP performance manager Telchemy introduced today the DVQattest/RE, an active test system which will enable service providers to pinpoint VoIP and IPTV service quality problems.

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The new system is comprised of server software which generates high call volumes and collects performance data, lightweight downloadable agents; and the DVQattest Reporter, an interactive Java-based user interface.

Agents can now be downloaded onto subscriber PCs or other equipment at the customer’s premises and interact with the network-based server in order to measure the quality of bidirectional VoIP test calls or network-originated IPTV test streams.  VoIP and/or IPTV performance information is gathered during each call and/or video session and reported to the DVQattest Reporter application.

All the VoIP performance information generated by DVQattest/RE includes listening and conversational quality MOS scores and R factors, data on transient congestion related IP problems, advanced jitter metrics, route information and network diagnostic data that can be used to help with root cause analysis. 

IPTV performance information includes audio, video and audio-video (multimedia) MOS scores, video transmission quality metrics, and RTP and MPEG transport metrics.

DVQattest/RE is complementary to Telchemy’s VQmon passive monitoring technology that can be integrated into software-based clients; IP set top boxes or residential gateways. VQmon non-intrusively monitors live VoIP and IPTV streams and provides real-time QoE/QoS feedback and network diagnostic data to service providers.

“Our new DVQattest/RE technology will be extremely helpful for service providers facing the challenge of delivering high quality triple play services to their residential customers,” said Telchemy’s CEO and president Alan Clark, in a statement. 

Clark added: “This technology can be used during early experimental trials, to support subscriber pre-signup testing, for continued service level monitoring and for on-demand troubleshooting.”

DVQattest technology for VoIP services is currently available to OEMs and IPTV support will be available next month.

Today’s news follows Telchemy’s announcement in July about it being awarded two additional patents for its VoIP and IPTV performance monitoring and analysis technology by the United States Patent and Trademark Office.

The patents allow for service quality monitoring systems that estimate subjective quality, also known as Quality of Experience (QoE) for VoIP, IPTV and Videoconferencing services. The algorithms described in these patents provide more accurate and stable performance metrics in the presence of time varying and transient impairments.