Network Design for Voice

You can deploy the best phones and the best cloud PBX, but call quality lives or dies on the network underneath. This intermediate course teaches you to design and defend that network. In five visual, example-rich modules you’ll master the voice quality budget (latency, jitter, loss); QoS with DSCP marking, trust boundaries and Low-Latency Queuing; the LAN with voice VLANs, 802.1p and PoE; the WAN with MPLS, internet and SD-WAN; and Call Admission Control — finishing with real branch-design and troubleshooting case studies.

Every concept is grounded in standard networking practice (ITU-T G.114, DSCP EF/46, 802.1p CoS 5, 802.3af/at/bt PoE) and reinforced with diagrams, worked bandwidth math, quizzes and case studies. You will be able to: size voice bandwidth · mark & queue voice with QoS · design voice VLANs and PoE · choose and apply SD-WAN · protect quality with CAC · and troubleshoot the classic ‘everyone’s choppy’ ticket.