QualTest – Mobile Test Probe

Sevana QualTest mobile test probe is an application that checks current network conditions and estimates voice quality in mobile and VoIP networks. If your goal is to set up end-to-end or single-ended automated tests, receive test results at any backend of your choice, manage tests and watch test results and reporting at a friendly GUI, then QualTest is a good fit.

Keep an eye on call quality with sevana.biz

Sevana Digital Signal Processing for Telecommunications

What is Sevana offering?

We offer knowledge and experience of our scientists and developers to solve complex software tasks in telecom, digital signal processing and other areas that require the unique skills we have.⠀

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sevana-is-sharing-source-code
C++ wrapper for libevent library

Sevana is sharing with open source community its tiny C++ wrapper for libevent library under MIT license. This helps us  to quickly build HTTP clients and servers reducing development costs due to API simplicity and integration. We actively use it in our products to provide high performance HTTP processing.

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Call quality issues maintenance prior your cusotmers complain

Do you want to know about call quality issues prior your customers start complaining?

Sevana libraries collect all the QoS and QoE data of the calls in real-time, providing immediate alerting on changes that affect callers’ perception, and discover and store reasons for call audio degradation. Map audio impairments on network metrics and discover QoE and QoS patterns, specific to certain routes, destinations, originations, or parts of the traffic.

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How to find call issues that affect callers’ perception?

Sevana PVQA analysis detects and informs about such annoying problems inside the call audio as:

VAD clipping – this impairment detects incorrect work of Voice Activity Detector (VAD). Detector finds edges of active and inactive fragments of the signal considering VAD worked too late (in the beginning of the speech) or too early (in the end of the speech).

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How to quickly setup SIP / VoIP call quality testing?

Using QualTest it’s easy:
🔘 Quick way to measure quality of SIP / VoIP call without installing complex software solutions
🔘 Runs on Linux (including ARM builds)/ macOS/ Windows operating systems:
🔘 Quality measurement is based on Sevana waveform analysis technology and network statistics such as packet loss, jitter etc (E-Model)
Keep an eye on call quality with sevana.biz

 

What are Sevana call quality testing offerings?
We are happy to offer all kinds of tools to test call quality in any network: VoIP, GSM, 5G, satellite
🔹 Vast call quality monitoring both on audio and protocol levels
🔹 Passive real-time and active scheduled call quality analysis
🔹 Call quality problem root cause analysis
🔹 Reliable network and payload MOS
🔹 Mobile-to-mobile call quality tests