If you were considering using SimpleSignal as a VOIP provider, you may want to reconsider. I signed up for their services and soon realized they were as unorganized as they were incompetent. Many of the advertised features touted by their salesperson Aric ** did not even exist.
I will literally leave 5 or 6 messages and 10 to 12 emails and still could not get responses from them regarding issues. I finally canceled the service by sending an email explaining why. To this day they are still billing me even though I canceled the service three months ago. Whatever you do, don't give them your debit card info or look out!