MultiDSLA: Capture all influences on your voice quality 

MultiDSLA solution is a state of the art measurement system for Voice Quality Testing and Performance Assessment used by many organisations as the reference measurement in applications ranging from core technology development to network operations.

In addition to objective and undisputable voice quality scores such as PESQ & POLQA MOS, MultiDSLA offers smart analytics and key performance indicators to help you identify the root cause of distortions in the degraded voice signal:

• Network impairments : one-way delay, packet loss, jitter buffer behaviour and echo,
• Speech & Noise level,
• Codec distortion,
• Voice activity detector (VAD) performance,
• Call setup analysis,
• DTMF sequences,
• And many more!

Most versatile voice quality test solution

The MultiDSLA Controller centrally automates call set up and measurements between any MultiDSLA Nodes in your voice network. Tests occur according to a pre-defined schedule or on demand  with a simple to use graphical representation of the net work.

The MultiDSLA offers unrivalled ease of use and can perform the most complex test processes, controlling 100+Nodes .

MultiDSLA Nodes provide connectivity with Device or Network Under Test (DUT) through :

• Legacy Analog interfaces - with DSLA nodes;
• Handset ports - with DSLA nodes;
• SIP/RTP for IP-based Network with VoxPort Packet (VPP) nodes
• Mobile Phone with Opale Smartphone Supervizer (OSS) nodes

The MultiDSLA Nodes are capable of generating voice signals at any level, and measure the key performance indicators configurable via the controller. Any selection of node types can be configured. The user interface is consistent and the test process remains identical, regardless of which node types are being used, making the system easy to learn, easy to use and supremely flexible.

Configure a system for your test application - VoIP service to analogue PBX, mobile to SIP, soft phone to POTS, SIP to Bluetooth, and so on.

Use Cases

• Voice Quality Testing in the Lab 
• Voice Network Monitoring 
• MCPTT/MCx Testing 
• Drive Testing

Features and benefits

• Flexible automation engine
  Unparalleled granularity of single tasks to be automated. Tasklist editor enables you to play, control, wait or trigger any event at will.
   
• End-user experience
  Objective MOS based on ITU-T PESQ® and POLQA® standards. Non intrusive nodes with the highest measurement accuracy.
   
• Management report
  SLA Management. Setup your Pass/Fail criteria on any KPI. Monitor your one-way delay, jitter, MOS, echo, speech levels...
   
• Field test with outdoor maps
  Test multiple "Fixed line to Mobile" or "Mobile to Mobile" communications simultaneously. GPS localization and synchronisation. Post process mapping data into Google Earth.
   
• Speech recognition
  Suitable for functional testing or residential gateways. Automatic access to our Speech-To-Text online platform.
   
• 100% open API
  REST API and Python module support. Allows integration with any quality test automation software (HP Quality Center).
   
• EVS ready
  Test EVS on your network, chipset, or device and validate new performance obtained.
   
• Voice and audio streaming integrity
  The unique way to assess your performance of audio streaming over Bluetooth or Wi-Fi. Detects and records any break or distortion over any test period. Specially designed for voice control systems (Amazon® EchoTM), car audio systems, or cordless loudspeakers.

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