Are you responsible for ensuring the voice quality offered across your network, targeted at meeting SLAs for specific customers or helping resolve customers’ problems quickly and efficiently? MultiDSLA offers a range of features to help you understand how your network is performing, when and where there are problems and drill-downs to understand specific causes.

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VoxPort Packet for VoIP or VoLTE

VoxPort Packet (VPP) tests voice band performance to or from VoIP or VoLTE endpoints in a network. For example. tests carried out between a VoLTE terminal and a VPP node can evaluate the effect of Packet Loss, Jitter, Transmit Rate Change and other impairments upon speech transmission performance problems.

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Define VoIP Packet Loss and Jitter


MetricServer provides easy access to speech and music quality measurements on reference and degraded file pairs. Metrics include ITU-T Recommendations P.862.1/2 PESQ, P.863 POLQA, BS 1387 PEAQ plus P.56 Speech Level, Echo and Delay, DTMF Analysis.

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Are you developing a new voice device, determining how a product inter-operates with your network, or investigating a customer complaint at one of the major service providers in the world? MultiDSLA has been providing performance analysis for engineers in the lab with incredible resolution, clarity and flexibility for many years.

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Opale Systems (formerly Malden) delivers reference speech quality measurement systems to the telecommunications community. With carefully designed interfaces to VoIP, mobile, satellite and wireline networks, our products are used to define and confirm performance standards all over the world.

Opale Systems - Malden products are used by:

  • Network operators for product evaluation, benchmarking and service level agreement confirmation
  • Handset manufacturers in development and product qualification
  • Mobile infrastructure manufacturers and integrators in system capability verification
  • IP network equipment makers for development and regression testing
  • Enterprises managing international voice networks

Latest news

Frame Communications Ltd appointed as new Opale Systems reseller in the UK

We are proud to announce that Frame Communications has agreed to distribute our reference speech quality testing and monitoring MultiDSLA solutions in the United Kingdom. Frame Communications Ltd supplies a wide range of Telecoms & Datacoms Test & Management solutions to Network Operators, Equipment Manufacturers, System Integrators, Field Support Groups, Installers, Test Houses and End […]

Posted on: May 16th, 2017 | Categories: Latest News

J&Y Corporation appointed as new reseller in South Korea

We are pleased to announce that J&Y Corporation has agreed to distribute both our MultiDSLA (speech quality measurement) and Qual IT – Video/VoIP monitoring – solutions in South Korea. Based in Seoul region, J&Y Sales and support teams are specialist experts in Voice and Speech Quality, and offer a wide range of services on Voice […]

Posted on: May 12th, 2017 | Categories: Latest News

VPP Upgrade Promotion

Purchase a VPP upgrade with 1-Year Maintenance Now and save up to $2 460 ! If you are MultiDSLA user with one or more of our good old “sVN” (Scalable Virtual Nodes) or an even earlier version, then this promotion has been made just for you! Until June 30th 2017, you can purchase the upgrade […]

Posted on: April 14th, 2017 | Categories: Latest News