I considered VoIPO but I just don't like the idea of opening such a huge number of ports via Port Forwarding. I want my home network to be as secure as possible with as few doors into it as I can. Opening 50 thousand ports isn't my idea of a safe thing to be doing.
I am aware VOIPO will open a large amount of ports. For what purpose? Where is it stated? I activated a Future 9/5 account. It didn't set up promptly and there was no responce from support. I got frustrated. It turns out Nitzan (the owner and everything, I guess) is on travel. Once he paid attention to, the account was set up (remotely) with no problem. If you don't mind sluggish support occasionally, I think it can be another choice.