The VoIP quality is now better and connecting faster than the traditional standard Public Switched Public Network (PSTN), the testing company Minacom said in its recent report. However, the VoIP carriers like Skype and GoogleTalk are the exceptional case, the report claimed.



The Testing Company has looked into the VoIP services provided by different companies for the last 12 months and concluded that VoIP quality has improved tremendously in comparison to the PSTN Network over the years.



Minacom clearly mentioned that the quality of VoIP service of different Cable Operators, Tele companies and broadband service providers has risen steadily over the years. In other words, an average Mean Opinion Score (MOS) for VoIP is 4.2 compared to 3.9 for the PSTN.



MOS is an International Telecommunication Union Standard (ITUS) standard which provides numerical indication to describe speech quality. It is usually expressed as single number that ranges from 1 to 5. 1 indicates worst quality and 5 shows best quality.



Minacom quotes “Based on a MOS threshold of 3.6, only one out of 50 calls in North America were considered to be unacceptable - one in 10 worldwide - while greater than 85 percent of VoIP calls exceeded average PSTN quality over the same period.”











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