I am a business owner in California who made the mistake of signing a contract with C-Beyond in March 2010. It was one of the worst mistakes I have ever made as a business owner, and I am still paying the price for it.
The largest of many problems was that their T1 routers misread every phone number dialed out by our (new) PBX, resulting in a 100% loss of outgoing calls. C-Beyond informed me that the problem was with my phone equipment and not their routers. After spending $800 on phone testing and tech support, it was determined that the problems were, in fact, with C-Beyond's routers. However, C-Beyond was unwilling/unable to do anything about it. Simply put, my existing equipment was irreconcilably incompatible with C-Beyond's, and could not be made to work under any circumstances. This all should have been determined at the time of sale, but the eager young sales representative was too busy salivating over the contract to do a proper site survey.
I spent a full month without use of my phone system, which nearly crippled my business, until I could switch back to AT&T. C-Beyond is completely unresponsive to any and all requests for support once they realize you are not happy with them. They are still trying to bill me $1,500 for services they completely failed to provide.
Do yourself a favor and STAY AWAY from this business. I wish I had.
Monetary Loss: $2300.