I went looking for the page (used to be free for three users), and alas no more. The business package gets BAA IIRC, but your exposure is limited if you don't have the transcripts forwarded.
Having done 6 VOIP startups (going back to circa 2000) and run two of them, I will caution you that not all VOIP companies are even comparable other than the CODEC they use.
RingCentral has worked well for us so far, and their provisioning is one indicator that they are well engineered on the back-end.
You may be interested in our upcoming After-Hours platform, and we could talk about that off-line.
