I'd say that switchvox is worth a look- Similar features... Enhanced of course.
It also will afford you the ability to use whichever vendor you choose for phones and future growth. I am not bashing Fonality here- Just pointing out the facts.
If you choose Fonality, you will find that there are all sorts of fees that are above and beyond what most system vendors have and you will have no choice but to work with them on it.
With switchvox you have the choice of doing business with whomever you'd like... you won't be married to a single vendor.
Mike White
.e4 Technologies
.e4 Technologies - Asterisk, Digium, SIP, and PBX hardware