I love how easy it was for me as an IT person, without any experience with VoIP system at all; even my boss who had used many different VO systems in his career couldn't get this one working properly! They didn’t support our SBC very well when we needed them most - during Hurricane Irma they were offline/down until literally minutes before their "business hours" started again!! Do yourself & your business favor by using AT&T Business Services instead if you have other options available where