VoLTE and the IMS

Alta3 Research
Training overview
Professional Course
Webinar, On-site, Self-paced Online
5 days
From 295 USD
Start dates
Online
Private Team Event delivered Virtually

Online
295 USD
Start anytime

United States of America
Private Team Training delivered On-site or Virtually

Course description

VoLTE and the IMS

Learn Voice over Long Term Evolution (VoLTE), IP Multimedia Subsystem (IMS), and Session Initiation Protocol (SIP) in this intensive 5-day class. This class thoroughly studies call flow through the EU-TRAN, the EPC and into the IMS core. We will make the entire picture clear and backup all that we teach with call flows using an IMS platform. This course also covers enough of other technologies like Diameter and DNS to allow you to understand the complete picture. The lessons in this course are clear, very technical, and always practical.

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Training content

IMS Architecture & SIP Proxies

  • Standards Bodies
  • VoLTE Introduction
  • The Building Blocks
  • Call Control Paths
  • Roaming and Visited
  • VoLTE Access
  • Call Flow

IMS Identifiers

  • IMS IDs
  • UICC
  • IMS URI

VoLTE and IMS Architecture

  • HSS

Bearer and APNs

  • Commonly Utilized Bearers

Power up Process

  • Overview
  • System Acquisition and RRC Connection Setup
  • Network Attach

Handover Between eNodeBs

  • Idle Mode
  • Active UE

Tracking and Paging A UE

  • Overview
  • Tracking and Paging a UE

SIP Architecture.

  • The Big Picture
  • SIP Message Format
  • IMS SIP Transactions
  • SIP Control Path
  • Proxy vs. B2BUA
  • SIP URI

SIP Via Paths

  • The Via Header
  • The SIP Transaction
  • Impact of Via Path on the SIP Dialog

SIP Route Headers

  • RR and Route
  • Looping

Basic SIP & IMS Specific Headers

  • Start Line
  • Via:
  • Via: branch parameter
  • From:
  • To:
  • Call-ID:
  • SIP Dialog ID
  • Contact:
  • CSeq: (Command Sequence)
  • Content-Type:
  • Content-Type: message/sipfrag RFC 3420
  • Content-Length:
  • Max-Forwards:
  • Allow:
  • OPTIONS
  • User-Agent:
  • Supported:
  • P-Preferred-Identity: and Privacy: RFC 3325 (UA to P-CSCF)
  • P-Preferred-Identity: to P-Asserted-Identity:
  • P-Access-Network-Info: RFC 3455
  • Authorization: RFC 3261 Section 22.2
  • Path: RFC 3327
  • Service-Route: RFC 3608
  • Introduction to SigComp
  • SigComp Example

Diameter

  • Overview
  • Diameter Message Structure
  • Customization
  • Registration Call Flow
  • SCTP

H.248

  • Overview
  • H.248 in the IMS Core

Initial Filter Criteria (iFC)

  • iFC Function
  • Data Structure
  • iFC Logic
  • iFC Example

Presence

  • The Presence Model
  • IMS Call Flow
  • Basic vs. Rich Presence
  • Message Examples

Session Description Protocol (SDP)

  • Overview
  • Lines
  • Offer/Answer
  • Preconditions

QoS

  • Enforcing QoS

IMS Call Flow Examples

  • SIP REGISTER
  • De-Registration
  • Media Relay

Circuit Switched Fallback

  • CSFB Originating
  • CSFB Terminating
  • Ladder Diagram

SR-VCC

  • Overview
  • Routing Number
  • SR-VCC Control Paths
  • The Media Path
  • SR-VCC Call Flow

Emergency Call Flow

  • References
  • Components

Charging in the IMS

  • Charging Systems Overview
  • Charging and Call Flow

DNS

  • Zone File
  • Locating SIP Servers

Costs

  • E-Learning fee: $295.00
  • Contact the provider for more information about pricing for on-site delivery option

Why choose Alta3?

25+ years specializing in technology training 

Over 95% student satisfaction rate

Training delivered in 9+ countries

About Alta3

Alta3 Research

Since 1997, Alta3 Research has been empowering organizations and individuals using their expert approach to Cloud, DevOps and Telecom training. We develop and perform technical training via live classroom, online classes and our library of self-paced learning videos and labs....


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