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MOS is good, you need to focus on Packet Loss and Jitter.
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MOS is good, you need to focus on Packet Loss and Jitter.

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Thanks Amit. But the question is just asking about how that number is derived. I'm not trying to solve voip quality issue per se in this question. Although I do have a number of issues there too.
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Thanks Amit. But the question is just asking about how that number is derived. I'm not trying to solve voip quality issue per se in this question. Although I do have a number of issues there too.

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Whenever an user have a Lync call/PSTN call CDR capture network traffic and call quality based on few parameters. These parameters are Jitter, Packet loss and MOS.<br />
<br />
so anything is showing in amber/warning level means there was some issue with call due to network. it can be due to latency, packet Loss or low bandwidth availability.
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Whenever an user have a Lync call/PSTN call CDR capture network traffic and call quality based on few parameters. These parameters are Jitter, Packet loss and MOS.

so anything is showing in amber/warning level means there was some issue with call due to network. it can be due to latency, packet Loss or low bandwidth availability.

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Thank you again Amit. Let's use a different number. Let's say that Call Analytics showed a MOS value of .1. How would that equate to a normal MOS score?
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Thank you again Amit. Let's use a different number. Let's say that Call Analytics showed a MOS value of .1. How would that equate to a normal MOS score?

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Normally I've seen MOS scores on a 1 to 5 point scale. But in Skype for Business Call Analytics they're expressed a decimal. e.g.<br />
<br />
Average network degradation 0.009717 MOS <br />
<br />
What are they saying? Is that a 4.93 MOS score?<br />
<a href="https://filedb.experts-exchange.com/incoming/2017/10_w42/1200266/ScrnGrab2671-171018-17.21.jpg" target="_blank" class="file-inline" title="Unusually expressed MOS score. What's going on? (28 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>ScrnGrab2671-171018-17.21.jpg</a>
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Unusually expressed MOS score. What's going on?

ScrnGrab2671-171018-17.21.jpg

Normally I've seen MOS scores on a 1 to 5 point scale. But in Skype for Business Call Analytics they're expressed a decimal. e.g.

Average network degradation 0.009717 MOS 

What are they saying? Is that a 4.93 MOS score?

Microsoft Skype MOS Score

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

Analytics is the discovery and communication of meaningful patterns in data. Especially valuable in areas rich with recorded information, analytics relies on the simultaneous application of statistics, computer programming and operations research to quantify performance. Specifically, areas within analytics include predictive analytics, prescriptive analytics, enterprise decision management, retail analytics, store assortment and stock-keeping unit optimization, marketing optimization and marketing mix modeling, web analytics, sales force sizing and optimization, price and promotion modeling, predictive science, credit risk analysis, and fraud analytics.

Analytics

Skype is for doing things together, whenever you’re apart. Skype’s text, voice and video make it simple to share experiences with the people that matter to you, wherever they are.

With Skype, you can share a story, celebrate a birthday, learn a language, hold a meeting, work with colleagues – just about anything you need to do together every day. You can use Skype on whatever works best for you - on your phone or computer or a TV with Skype on it. It is free to start using Skype - to speak, see and instant message other people on Skype for example.

Skype

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).