On a course of almost 4 years Cbeyond got us disconnected at least once in three month. Customer service always promise to take care of the problem but never did until you call them 3-4 times. Cbeyond uses ATT and other subcontractors to fix onsite technical issues. Porting out numbers – it’s almost impossible – they do everything to make you stay and pay for the service even though you don’t need it anymore. The worst telecom company that we have a deal with. ATT and Comcast have their own issues – but Cbeyond is a leader on this department. read full review »