TOP LOC 152025 VoIP, SIP & Advanced Troubleshooting (MITEL products can be used during the training)

This course dives into the world of Voice over IP (VoIP) technologies, focusing on SIP, codecs, media handling, and advanced troubleshooting. Participants will also explore security, NAT traversal, and best practices for real-world deployments. MITEL products may be integrated during training to simulate enterprise-grade environments.

Target Group

End Customers and Mitel Partners
Audience Level: Beginners and Intermediate

Requirements

Understanding of TCP/IP and networking basics
Familiarity with OSI model and common protocols
Recommended: Completion of the course TOP LOC 142025 Computer Networks & Information Security or equivalent experience

Methods

Remote Leader Led/RLL: Virtual classroom environment

Virtual lab setup using simulation

Equipment and Setup Requirements for Remote Leader Led Training:

Equipment to participate in a video conference e.g. headset.
Two PCs or one PC with dual screens.
Further information will be provided prior to the start of the course.

Key Features

Day 1: VoIP Foundations, Architecture, Readiness, and QoS Objectives

Understand VoIP concepts, architectures, and readiness criteria.
Distinguish core protocols (SIP/SDP/RTP) and how they interact.
Introduce QoS concepts, bandwidth planning, and capacity planning basics.

Day 2: SIP, SDP, RTP/RTCP, and Codec Handling Objectives

Deep dive into SIP, SDP, RTP/RTCP, and codec negotiation.
Understand how codecs are selected, and how RTP flows work with SIP.
Begin to explore NAT traversal implications.

Day 3: SIP Flows, Registration, Trunks, and NAT Traversal Techniques; Introduction to Security Objectives

Map typical SIP call flows (registration, invite, ack, bye).
Explore trunks (SIP trunks, PSTN interfacing) and NAT traversal techniques in depth.
Introduce VoIP security concepts: TLS, SRTP, SIP authentication basics, and DoS mitigation concepts.

Day 4: Session Border Controllers (SBCs), B2BUA, Media Handling, and Troubleshooting Tools Objectives

Understand SBC roles, B2BUA behavior, and media handling strategies.
Explore common VoIP troubleshooting tools and techniques.
Begin addressing common VoIP issues: jitter, packet loss, one-way audio, codec mismatches.

Day 5: H.323 Overview, Review, and Best Practices Objectives

Compare H.323 with SIP and discuss when H.323 might still be used.
Synthesize knowledge into best practices for design, deployment, monitoring, and security.paths, and the /proc filesystem.
Signals: interrupt, terminate, and basic signal handling