MONTREAL – Voice over Internet protocol phone service sounds better and connects faster than the standard public-switched phone network (PSTN), says a new survey from a Montreal company. Data collected over the last 12 months (July 2005 to July 2006) by Minacom show that VOIP service quality, according to its standards-based, single-ended service quality test system, increased steadily over the last year, with an average Mean Opinion Score (MOS) of 4.2, compared to 3.9 for the PSTN. (MOS is a scale commonly used to describe speech quality, ranging from 1 , says Minacom). Based on a MOS threshold of 3.6,...
