Courses

IMS (VoLTE) Advanced Signalling

Course Objectives

This course has been designed for professionals seeking to develop a solid understanding of IMS (IP Multimedia Subsystem) Networks and their supporting services.

The course provides a detailed introduction to signaling in IMS by presenting the protocols (SIP, SDP, Diameter and H248/MeGaCo) involved, different traffic cases from the IMS System. Provides also a detailed overview of VoLTE and Wi-Fi calling end2end use cases. It includes exercises with a thorough analysis of VoLTE traces taken on a live VoLTE/CS network: VoLTE registration, Session setup, SRVCC and IMS Centralized Services (ICS).

Contents

  1. Describe the architecture of IMS the functions of the main logical nodes and the main IMS specifications and protocols.
  2. Discuss the structure, specifications and usage of Session Initiation Protocol (SIP) and Session Description Protocol (SDP).
  3. Recognize the structure, specifications and usage of the Diameter Protocol and of H.248 (MeGaCo)
  4. Analyze detailed IMS signaling flows and Message content for registration, session establishment and other call scenarios.
  5. Explain the Registration process, including Authentication.
  6. Relate detailed SIP and SDP signaling flows and messages from traces.
  7. Interpret detailed diameter signaling flows and message content for registration.
  8. Review the basic concepts of VoLTE and its architecture.
  9. Explain what VoLTE is, and its background.
  10. Describe VoLTE attach and registration procedures.
  11. Perform analysis of VoLTE attach and registration signaling captures.
  12. Describe VoLTE session setup procedures.
  13. Perform analysis of VoLTE session setup signaling captures
  14. Describe SRVCC (Single Radio Voice Call Continuity) procedures.
  15. Perform analysis of SRVCC signaling captures.
  16. Describe ICS (IMS Centralized Services) procedures.
  17. Perform analysis of ICS signaling captures.
  18. Explain use cases in Wi-Fi Calling network.

Entry Requirements

Mobile Networks knowledge background and/or working experience.

Target Group

Core Network Support Engineers and operations personnel.

 Mode of Delivery

Instructor-led training including theory lectures, practical exercises and open Q&A sessions.

 Duration:  3 days

 Language: English

 Participants: The maximum number of participants for this course is 12