Personally I'd get a phone that is independent from the computer, rather than USB. Or, failing that, what about an adaptor like this and just use a normal phone??
http://www.vonage.co.uk/voip/?loc=google&source=ppc&gclid=CPfig4iOpp4CFQ6Z2AodBWLYlQ Sean -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
