有一个三San Diego的，15.50 for 10euros， 看起来不错。
With voipdiscount, it's about $0.0093/m for calling China. I am using callwithus, its server is is US and rate is $0.0099, quality, service are great (very minimum latency). seems like no reason for me to switch to voipdiscount (they don't have an access number in China, right?).
