Telchemy Announces VQmon

VQmon Provides the Emerging Standard for Voice Quality Measurement And

Monitoring That Models the Effects of Time-Varying Network Impairments



Apr 23, 2001, 01:00 ET from Telchemy, Inc.

    ATLANTA, April 23 /PRNewswire Interactive News Release/ -- Telchemy, Inc.
 announced today its flagship offering, VQmon(TM), the emerging standard in
 voice quality monitoring for Voice over IP (VoIP) services.  VQmon is the
 first product that measures time-varying network impairments and models their
 effects on subjective quality, such as human short term auditory memory to
 provide a voice quality metric.  VQmon's technology has been incorporated into
 the ETSI standard ETSI TS 101 329-5 Annex E and is currently under review by
 additional standards committees and industry forums.
     VQmon is a lightweight, computationally efficient, real-time, embedded
 voice quality monitor that can measure and monitor all calls made over VoIP
 networks.  It integrates easily into VoIP gateways, communications servers, IP
 phones, test equipment, analysers and other VoIP-related equipment.  VQmon
 extends the ITU E model Standard with sophisticated technology that models the
 impact of packet-loss-bursts, time-varying-impairments, and the recency
 effect.
     Network impairments, such as packet loss, delay and jitter, are not
 constant in time, resulting in variable voice quality being experienced by the
 end-user during a call.  VQmon is able to model both the way that the user
 experiences quality in real time and their opinion of call quality at the end
 of a call.
     "Service providers are concerned that the quality of Voice over IP calls
 is less predictable than that delivered by their existing network," said Dr.
 Alan Clark, president and founder of Telchemy.  "The ability to monitor the
 end user perceived quality of calls will allow service providers to manage
 their service in real time, avoid over-provisioning, improve subscriber
 retention and increase their confidence in Voice over IP technology.  This
 will accelerate the rate of deployment and adoption of the new
 infrastructure."
     Commenting on this subject in the February 2001 issue of Computer
 Telephony, Chris Bajorek wrote, "Until unlimited bandwidth is available and
 free to all, time-varying network impairments will exist and have to be dealt
 with.  I think it's a safe bet that we will start seeing Telchemy's technology
 embedded into VoIP products soon.  It's even possible to integrate this real-
 time monitoring into external boxes as long as information about the current
 call's CODEC and other parameters are known.  If VoIP manufacturers are smart,
 they will put a lot of effort into this, and soon. Our industry could use it."
     "Brooktrout Technology believes that QoS management is one of the most
 important enabling technologies for emerging Voice over IP services," said
 Andy O'Brien, Vice President and General Manager, New Public Networks Group.
 "Incorporating Telchemy's VQmon technology into our products will allow our
 customers to monitor the end-user perceived voice quality of every call made
 in their network.  This will allow them to provide consistent service quality
 and differentiated services."
     VQmon's code is compact, highly portable and computationally efficient.
 VQmon is OS and processor independent.  As a cost-effective, lightweight, yet
 powerful embedded application, VQmon has negligible impact on its host
 processor or system performance.
     VQmon is orderable immediately, with shipments beginning on April 30,
 2001.  Pricing is composed of source license, nominal run-time royalties, and
 maintenance fees.  Interested parties should contact Telchemy for details.
 
     About Telchemy
     Telchemy develops intelligent network Quality of Service (QoS) management
 applications that help to provide high quality service delivery over
 packetized networks such as the Internet.  The company's initial focus is the
 Voice over IP (VoIP) market where service providers and major corporations are
 concerned about potential QoS issues resulting from packet loss, latency, and
 jitter.  Telchemy's adaptive management applications extend existing
 standards, implementing advanced statistical models that relate network
 performance to end-user perceived voice quality.  Telchemy is the world's
 first technology company to provide voice quality measurement and monitoring
 that considers the effects of time-varying network impairments and accounts
 for the recency effect.  For more information, visit www.telchemy.com .
 
                     MAKE YOUR OPINION COUNT -  Click Here
                http://tbutton.prnewswire.com/prn/11690X52658644
 
 

SOURCE Telchemy, Inc.
    ATLANTA, April 23 /PRNewswire Interactive News Release/ -- Telchemy, Inc.
 announced today its flagship offering, VQmon(TM), the emerging standard in
 voice quality monitoring for Voice over IP (VoIP) services.  VQmon is the
 first product that measures time-varying network impairments and models their
 effects on subjective quality, such as human short term auditory memory to
 provide a voice quality metric.  VQmon's technology has been incorporated into
 the ETSI standard ETSI TS 101 329-5 Annex E and is currently under review by
 additional standards committees and industry forums.
     VQmon is a lightweight, computationally efficient, real-time, embedded
 voice quality monitor that can measure and monitor all calls made over VoIP
 networks.  It integrates easily into VoIP gateways, communications servers, IP
 phones, test equipment, analysers and other VoIP-related equipment.  VQmon
 extends the ITU E model Standard with sophisticated technology that models the
 impact of packet-loss-bursts, time-varying-impairments, and the recency
 effect.
     Network impairments, such as packet loss, delay and jitter, are not
 constant in time, resulting in variable voice quality being experienced by the
 end-user during a call.  VQmon is able to model both the way that the user
 experiences quality in real time and their opinion of call quality at the end
 of a call.
     "Service providers are concerned that the quality of Voice over IP calls
 is less predictable than that delivered by their existing network," said Dr.
 Alan Clark, president and founder of Telchemy.  "The ability to monitor the
 end user perceived quality of calls will allow service providers to manage
 their service in real time, avoid over-provisioning, improve subscriber
 retention and increase their confidence in Voice over IP technology.  This
 will accelerate the rate of deployment and adoption of the new
 infrastructure."
     Commenting on this subject in the February 2001 issue of Computer
 Telephony, Chris Bajorek wrote, "Until unlimited bandwidth is available and
 free to all, time-varying network impairments will exist and have to be dealt
 with.  I think it's a safe bet that we will start seeing Telchemy's technology
 embedded into VoIP products soon.  It's even possible to integrate this real-
 time monitoring into external boxes as long as information about the current
 call's CODEC and other parameters are known.  If VoIP manufacturers are smart,
 they will put a lot of effort into this, and soon. Our industry could use it."
     "Brooktrout Technology believes that QoS management is one of the most
 important enabling technologies for emerging Voice over IP services," said
 Andy O'Brien, Vice President and General Manager, New Public Networks Group.
 "Incorporating Telchemy's VQmon technology into our products will allow our
 customers to monitor the end-user perceived voice quality of every call made
 in their network.  This will allow them to provide consistent service quality
 and differentiated services."
     VQmon's code is compact, highly portable and computationally efficient.
 VQmon is OS and processor independent.  As a cost-effective, lightweight, yet
 powerful embedded application, VQmon has negligible impact on its host
 processor or system performance.
     VQmon is orderable immediately, with shipments beginning on April 30,
 2001.  Pricing is composed of source license, nominal run-time royalties, and
 maintenance fees.  Interested parties should contact Telchemy for details.
 
     About Telchemy
     Telchemy develops intelligent network Quality of Service (QoS) management
 applications that help to provide high quality service delivery over
 packetized networks such as the Internet.  The company's initial focus is the
 Voice over IP (VoIP) market where service providers and major corporations are
 concerned about potential QoS issues resulting from packet loss, latency, and
 jitter.  Telchemy's adaptive management applications extend existing
 standards, implementing advanced statistical models that relate network
 performance to end-user perceived voice quality.  Telchemy is the world's
 first technology company to provide voice quality measurement and monitoring
 that considers the effects of time-varying network impairments and accounts
 for the recency effect.  For more information, visit www.telchemy.com .
 
                     MAKE YOUR OPINION COUNT -  Click Here
                http://tbutton.prnewswire.com/prn/11690X52658644
 
 SOURCE  Telchemy, Inc.