nekote,
I've been tempted to do as you suggest, but, sometimes (infrequently), I get dropped calls or terrible echos/latency/noise from onesuite. The extra "hop" from having to dial through them is likely the culprit. Also, for California, I don't mind spending the extra 0.6 cents per minute for the convenience (and lower latency) of dialing direct. I guess the 1010 numbers might be a solution. I will have to look into that. VarTec, though, has a 50 cent minimum per completed call (according to their website).
Don't get me wrong, though. Onesuite is my first choice for 90% of my LD.