VoIP Vs. PSTN
VoIP improving, ocassionally better than PSTN
A recent study
proclaimed that incumbent VoIP offered better call quality than the PSTN, though the study was conducted by an incumbent cable VoIP hardware maker. Ars Technica
now checks out a seemingly more reliable study by Keynote that proclaims VoIP quality is improving, and in some cases exceeds the PSTN, provided you're calling within the United States and using cable VoIP. The Keynotes press release
released last week has more detail.