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TRANSMISSION TECHNOLOGIES

Voice Over WiFi

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Duration and Training Format

3-day instructor-led training

Course Objectives

The course describes in depth the technological solutions and standards that will enable the migration of telephony services over WiFi networks. After successful completion of this course, participants will be able to:

  • Describe the network design and infrastructure for WiFi
  • Describe the Voice over WiFi architecture
  • Understand and describe the WiFi Calling
  • Understand the trusted and un-trusted  non-3GPP access
  • Describe the Packet core infrastructure needed for Voice over WiFi
  • Describe on how IMS is working and is related to delivering Voice
  • Describe E2E signalling of SIP
  • Describe the security related call-flow of a call.
  • Understand mobility scenarios  (WiFi – EUTRAN, ANDSF, MAPCON, IFOM, NSWO)
  • Understand how to engineer WiFi for best possible VoWiFi Quality of Experience

Course Overview

The course provides a solid technical understanding of the Voice over WiFi technologies and architectures
endorsed by 3GPP, and the LTE industry. More specifically, the course covers in depth the procedures call flows as well as the necessary network optimizations required to deliver high performance & experience of voice service. The course contents goes beyond VoWiFi covering in depth WiFi Calling (VoWiFi) its call flows, handovers, and performance optimizations for a holistic and uniform packet based Voice service.

Key Benefits

Completing the course, participants will be proficient enough to be able to design, plan and optimize a best of class VoWiFi service that satisfy the current and future market requirements.

Pre-requisite for Participants

Basic knowledge of the IP. Basic understanding of 3GPP (preferably EPS, UMTS, LTE).

Who Should Attend?

Service Engineers, IP engineers, Radio and Packet core engineers, managers, project managers, Technical product managers, technical marketing officials, and technical strategy officials.

Course Outline

Voice over WiFi Overview

  • VoWiFi service and its usage
  • WiFi basics
  • Architecture overview:
  • Standardization: LTE <-> WiFi Voice mobility

IMS Architecture Overview

  • IMS overview
  • SIP protocol
  • IMS registration and procedures
  • IMS profile for voice with WiFi access (GSMA defined)

VoWiFi Access and Procedures

  • VoWiFi procedures:
  • PDN Connection Setup
  • Media Streams
  • Diameter messages

Voice over WiFi Mobility

  • Mobility scenarios
  • Role of ANDSF

Packet Core Network Connections

  • Hotspot 2.0
  • ANDSF
  • SiPTO
  • MAPCON, NBIFOM

Voice over WiFi Planning & Optmization

  • VoWiFi auditing & surveying
  • Traffic / capacity planning
  • QoS and Codec optimization
  • 802.11e extensions , WMM

E2E VoWiFi QoE

  • UE Capabilities
  • MOS for VoLTE
  • Engineering E2E Voice QoE

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