I don't know if you can port (out) from your current provider, but you should be placing this thread in the VoIP section of DSLR to get a better response. If you're able to port, Callcentric is offering free porting right now. As far as sound quality, VoIP.ms offers a premium routing for a little more per minute. Mind you, if you make a 30 second call with VoIP.ms, you are only billed for a mere 30 seconds. The only negative is that VoIP.ms charges $25 for porting.