You control the number of Google Voice and it has the same features too and is free. Clearly if you wanted to use Twillio platform with the same number there are things Google Voice could not do, but as is, I don't see the difference. What is the difference?
I don't live in the US, so Google Voice is not available, and I don't know much about it. Using Twilio seems right to me, because it's basically a low level phone number provider, you don't feel that locked.
