Qrystal Product


Why VoIP service monitoring with Qrystal?

  • Qrystal is far more than your ordinary signaling monitoring tool. It analyses all SIP and RTP packets and tells you everything you need to know about the in-call user experience. This is what we call dual visibility.
  • Qrystal means efficient operations. Voipfuture’s patented technology automatically identifies typical impairment patterns and significantly reduces the time to fix – sometimes from months to hours.
  • What is the user experience of an enterprise customer, a VoLTE cell or a route to an international destination? Qrystal is the only solution to provide actionable timeslice KPIs for assessing the in-call user experience. Timeslice KPIs are like the average MOS – only better.

Qrystal Key Facts



Voipfuture’s Qrystal quality assurance solution gives communication service providers (CSPs) full control over their voice service quality

Qrystal is a passive mid-point monitoring solution for real-time communication services

  • Consisting of distributed Qrystal Probes and the central Qrystal Manager
  • Non-intrusive test access ports (TAPs) connect the probes to the network

Qrystal Probes

  • Determine the signaling and media stream characteristics at multiple points in the network
  • Analyze all SIP, RTP, and RTCP packets on a link in real-time
  • Generate unique metrics for further processing by the Qrystal Manager
  • Call-related SIP signaling at a monitoring point is analyzed and summarized as xDRs
    • SIP messages are stored on the probe for display in call flow diagrams
  • Voipfuture’s patented fixed time slicing technology creates quality data records (QDR)
    • Containing highly condensed statistical information for every 5-second segment of an RTP stream
    • QDRs hold several hundred values, ratios, KPIs, and even automatic root cause indicators.
  • Qrystal Probes also feature smart packet recording to create traces of individual calls or trunks.

Qrystal Manager

  • A carrier-grade data warehouse
  • Collects all metric data from the Qrystal Probes for post-processing and aggregation
    • KPIs, quality-enriched CDRs, and other data are stored in the data warehouse.
  • Offers a multitude of analytics and troubleshooting capabilities that enable
    • Effective voice service monitoring
    • Fault alarming
    • Numerous interfaces for integration with OSS/BSS applications
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Products Qlear



We created Voipfuture Qlear to ensure that Communication Service Providers can actually profit from their enterprise VoIP service offerings. Qlear covers the entire customer lifecycle and applies to

  • Pre-qualification
  • Onboarding
  • Incident management
  • 24/7 service performance monitoring of enterprise customers

All in one solution.

Voipfuture Qlear features two tools:

  • The Qlear App is purely a remote software-based tool that enables LAN tests, WAN tests, and VoIP service tests for pre-qualification and when probes cannot be installed on site. Results are available in minutes.
  • The Qlear Probe integrates Voipfuture’s passive monitoring technology with active testing features on a small server hardware. This hybrid approach provides information on live call quality, service availability, WAN performance and so on. Qlear Probes are operated fully remotely and monitor customer traffic 24/7.

Why Qlear

  • Eliminate the costly need for sending service engineers to customer sites
  • Close the visibility gap behind customer access networks
  • Quickly identify problem sources and avoid the blame game with customers
  • Reliably analyse “ready for service” conditions
  • Tightly integrates with Qrystal and provides a full end-to-end view

Qrystal Intelligence



Qrystal Intelligence is a business intelligence solution that provides fascinating insights into your voice service and network.

Qrystal’s unique monitoring statistics are processed in the context of your business rules and processes. The results are interactively analyzed and visualized for target audiences like management or operations.

For example, Qrystal Intelligence is used to create performance maps showing the signaling and media quality of VoLTE eNBs. This information can be filtered and sliced by region, UE and NE vendors and many other dimensions. In addition, Qrystal Intelligence generates intelligent alarms to detect anomalies in network & service performance based on all VoIP data flowing through your network.

A Qrystal Intelligence project is based on Voipfuture’s intelligence tool chain and the necessary professional services to involve key stakeholders for best fitting integration into the business processes. The tool chain includes data feeds, the analytics post processing server and report design.

Qrystal intelligence reports can be embedded into Qrystal 7+ or provided via a dedicated Qrystal Intelligence portal.




Qrystal is a passive VoIP analytics solution for SIP/RTP based voice services, Qrystal Probes sit on the edges of the network and integrate voice quality assurance and root cause analysis.

  • Qrystal Probes analyze all voice packets on a link in real-time
  • The central Qrystal Manager collects quality information for post-processing, correlation, storage and display
  • The data warehouse holds data from billions of calls
  • Smart use of standard COTS hardware or virtual infrastructure

In fixed networks the probes are mostly placed around SBCs, routers and media gateways, while VoLTE deployments typically call for monitoring of the S1-U/S11 and/or Mw/Mb interfaces. One probe appliance is typically sufficient to monitor an entire site.

Qlear Key Facts


Qlear – Key Facts

Qlear is an add-on solution for service providers offering Enterprise VoIP services. It deals with the challenges of customer onboarding and expectation management by performing active tests prior to service deployment and provides simple yet comprehensive reports. Customers can see and fix any issues prior to installation assuring hassle-free onboarding. In-service performance and customer SLAs can be managed using hybrid active/passive monitoring technology.

Qlear includes two tools for monitoring and testing behind the customer firewall:

  • Qlear App – Customer prequalification App that includes end to end active testing and a customer friendly report. The App is downloaded directly from the CSP’s website; it performs a predetermined set of tests and delivers results within minutes. The App greatly reduces the need for on-site work of engineers and provides for super-fast turn-around times.


  • Qlear Probe – The easily deployable CPE provides continuous analysis of live calls and active test calls for proactive customer satisfaction monitoring and SLA assurance. In case of an incident the Qlear Probes allows to quickly pinpointing the network segment causing issues. This avoids the blame game between the you, the customer and any involved third and drastically reduces the time to fix.
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