The Uplevel Systems blog on VoIP and QoS explains how Quality of Service (QoS) technology enhances VoIP call quality by prioritizing voice data packets, helping to reduce issues like call dropouts and latency. It discusses the different types of VoIP setups (in-house vs. hosted) and the role of QoS in managing network traffic for reliable communication. Uplevel Systems also offers solutions with VLAN capabilities, traffic shaping, and automated failover for uninterrupted service.