It probably won't come as a surprise to people who have tried VOIP Internet phone service, but
usatoday.com is reporting that a new survey by Keynote Systems Inc., finds that Internet based phone calls are still quite a bit inferior to normal phone lines:
Internet-based telephone services are still very inferior to traditional phone connections in reliability and sound quality, according to an extensive study that judged Vonage and AT&T CallVantage best among the top providers...
Keynote declined to disclose the full rankings from the study, which it is selling to clients but said the scores varied widely from top to bottom and that even the leaders had substantial room to improve...
Disruptions in the ability to make or receive a call was a key problem, the study found. Keynote said service availability ranged from 99.4% of the time to as low as 94.8%, meaning that for customers of the worst performers, one out every 20 call attempts failed.
While the Internet based phone services can substantially reduce your phone bill, taking into account the inferior quality should be part of your calculation if you are considering the switch.