Cbeyond can not provide hosted exchange in California. They have blamed our troubles on the sip server (we had to purchased for $5000) that they require to run their system. So when I found a company that provides an host exchange for a sip server they say that they can not do that as we are on the west coast. Now that I want to cancel because they can not do as I request they want to charge me $9000. Please some one start a class action suit for all 100's of people like me that have daily problems with this company. read full review »