Learning VoIP and Unified Communications Course

Lesson 1 • VoIP Core Concepts and Architecture

Introduces packet-switched voice, VoIP components, and end-to-end call flow. Connects telephony history to modern IP-based systems.

Lesson 2 • VoIP Call Quality Metrics

Defines latency, jitter, and packet loss and their thresholds for acceptable voice quality. Sets measurable quality targets used in later chapters.

Lesson 3 • Voice Codecs and Audio Quality

Explains codec encoding, compression trade-offs, and bandwidth consumption. Directly impacts call quality decisions made throughout the course.

Lesson 4 • IP Networking Essentials for VoIP

Reviews TCP/IP, UDP, and subnetting as they apply to voice traffic. Provides the network foundation required for all subsequent VoIP topics.

Lesson 1 • Session Initiation Protocol (SIP) Deep Dive

Covers SIP message structure, methods, responses, and dialogue lifecycle. SIP is the dominant protocol in modern UC deployments.

Lesson 2 • SDP and Media Negotiation

Explains how Session Description Protocol carries codec and media parameters within SIP. Enables students to read and troubleshoot SDP offers and answers.

Lesson 3 • RTP and RTCP for Voice Transport

Details how RTP carries voice packets and RTCP provides quality feedback. Connects media transport to the quality metrics introduced in Chapter 1.

Lesson 4 • Introduction to Signalling vs. Media

Distinguishes signalling plane from media plane and explains why both are needed. Frames the protocol landscape covered in this chapter.

Lesson 1 • Quality of Service Fundamentals

Introduces QoS concepts, classification, and marking for voice traffic. QoS is the primary tool for protecting call quality across shared networks.

Lesson 2 • WAN and Internet Connectivity for VoIP

Addresses bandwidth planning, link redundancy, and SD-WAN for voice over wide-area links. Extends QoS concepts to multi-site deployments.

Lesson 3 • Network Security for VoIP

Identifies VoIP-specific threats and countermeasures at the network layer. Security concepts here extend into UC security in later chapters.

Lesson 4 • LAN Switching for Voice

Explains voice VLAN configuration, PoE for IP phones, and spanning tree considerations. Ensures stable Layer 2 connectivity for endpoints.

Lesson 1 • SIP Trunk Configuration

Configures SIP trunks to carriers and between PBX systems. Builds on SIP protocol knowledge from Chapter 2 in a practical context.

Lesson 2 • Extension and User Provisioning

Covers creating SIP extensions, assigning users, and configuring endpoint registration. Directly enables the call routing configured in subsequent sections.

Lesson 3 • Dial Plan Design and Configuration

Teaches dial plan logic, pattern matching, and call routing rules. The dial plan is the core intelligence of any PBX deployment.

Lesson 4 • Core PBX Features Configuration

Implements voicemail, auto-attendant, call queues, and ring groups. These features form the standard telephony service set expected in any deployment.

Lesson 1 • Video Conferencing in UC

Explains video codecs, endpoint types, and multipoint conferencing infrastructure. Video is a core UC modality alongside voice.

Lesson 2 • UC Platform Integration Points

Identifies how UC platforms connect to CRM, ERP, and directory services. Integration extends UC value and is a key differentiator in enterprise deployments.

Lesson 3 • What Is Unified Communications

Defines UC, its components, and the business value of integration. Transitions students from VoIP-only thinking to a full UC perspective.

Lesson 4 • UC Client and Softphone Deployment

Covers deploying desktop and mobile UC clients, softphone configuration, and user adoption. Clients are the primary interface users have with the UC system.

Lesson 1 • Network Readiness for UCaaS

Assesses internet connectivity, local breakout, and QoS requirements for cloud voice. Applies network skills from Chapter 3 to the UCaaS context.

Lesson 2 • UCaaS Architecture and Models

Explains multi-tenant cloud PBX, hybrid UC, and CPaaS models. Establishes the architectural vocabulary for cloud UC decision-making.

Lesson 3 • UCaaS Administration and Management

Teaches day-to-day administration of cloud UC portals, user management, and policy enforcement. Builds operational competency for cloud environments.

Lesson 4 • Security and Compliance in UCaaS

Addresses data residency, encryption, and regulatory compliance for cloud communications. Extends VoIP security concepts from Chapter 3 to cloud platforms.

Lesson 1 • Packet Capture and Protocol Analysis

Teaches capturing and decoding SIP and RTP traffic with analysis tools. Protocol-level visibility is essential for diagnosing complex call failures.

Lesson 2 • Voice Quality Troubleshooting

Diagnoses jitter, echo, and choppy audio using QoS and network tools. Connects quality metrics from Chapter 1 to actionable remediation steps.

Lesson 3 • Monitoring and Alerting for VoIP

Configures proactive monitoring, SNMP traps, and synthetic call testing. Shifts operations from reactive to proactive quality management.

Lesson 4 • Troubleshooting Methodology

Introduces a structured fault-isolation approach for voice systems. A repeatable methodology reduces mean time to resolution across all issue types.

Lesson 1 • Session Border Controller Design

Details SBC placement, policy enforcement, and interoperability functions at network edges. SBCs are critical security and interoperability components in enterprise UC.

Lesson 2 • Enterprise UC Architecture Design

Covers multi-site UC topology, centralised vs. distributed call processing, and survivability. Integrates all prior technical knowledge into cohesive architecture decisions.

Lesson 3 • UC Governance and Policy

Establishes naming conventions, change control, and acceptable-use policies for UC systems. Governance ensures long-term operational consistency and compliance.

Lesson 4 • Total Cost of Ownership and ROI

Builds a TCO model comparing on-premises, hybrid, and cloud UC options. Equips students to justify UC investments to financial decision-makers.