What does mean opinion score mean in regard to VoIP?
Ask the Expert!
Do you have a question for Matt Brunk or any of our other experts? Ask your enterprise-specific questions today! (All questions are treated anonymously.)
In the telephony world, mean opinion score is defined as the "numerical measure of the quality of human speech at the destination end of the circuit." The mean opinion score (MOS) is a rating from one to five with five being excellent call quality.
Manufacturers of routers such as Adtran Inc. use metrics such as MOS within their Voice Quality Monitoring software to gauge call quality of VoIP traffic. The drill-down statistics and reporting allow network administrators to locate where issues are and isolate them. More sophisticated examples of MOS metrics involve companies such as Riverbed Technology, which provide substantial storage of recorded calls and traffic that allow the network administrators to retrieve voice calls with low scores.
The statistical use of mean opinion score is a scientific method to gauge call quality, and while it leaves some subjectivity, it is infinitely better than relying upon the PSTN without call quality metrics to gauge issues and the ability to resolve them.
Learn more about mean opinion score:
Dig Deeper on VoIP QoS and Performance
Related Q&A from Matt Brunk
How does VoIP Quality of Service compare between cable and DSL? Telephony Expert Matt Brunk explains that broadband Internet type doesn't necessarily... Continue Reading
When it comes to UC and VoIP equipment, there is no one-size-fits-all for enterprises, according to telephony expert Matt Brunk. Brunk explains how ... Continue Reading
Telecom expert Matt Brunk explains the role FCC regulations play in corporate communications, from Title 47 regulations to issues like net neutrality. Continue Reading