We have been a client of MasterTel USA for roughly 8 years. They initially provided our MPLS and Cloud Telephony solution at are nationwide locations and have recently transitioned us to SD-WAN with High Availability. In addition, they conducted WiFi Surveys, upgraded our cabling infrastructure in our warehouses and provided us with managed APs. Working with MasterTel USA has helped us tremendously in navigating the technology vendor experience and I can always count on MasterTel to help us expedite and resolve issues timely which means a lot to our busy and limited IT staff.