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Course Name: IMS Signaling Online (Live - Instructor-Led - WebEx Sessions)

Course Tuition: $1995.00


Course Length: Four, 8-hour live sessions


Description: The purpose of this course is to provide an understanding of the signaling protocols used in the IP Multi-media Subsystem (IMS) to support voice and other services. The course will give you the knowledge to understand the evolving telecommunications network including the IMS. IMS is an architecture that enables network operators to offer their subscribers multimedia services based on and built upon Internet applications, services and protocols. This course covers the basic terms and concepts and explains IP (Internet Protocol) architectures and protocols that are being used to implement VoLTE in the IMS.

What You Will Learn: This course will examine the key concepts, terms and protocols of the IMS. The course provides an understanding of the primary protocols, SIP and Diameter and message flows used for VoLTE and other services.

Who Will Benefit From This Course: This course is designed for individuals responsible for or involved with network planning, interconnection, technical support or network operations.


Course Outline:


         IMS Overview and Architecture

LTE (Long Term Evolution) Architecture

  LTE Entities

  LTE Procedures

  IMS Architecture

·      Service Concepts

      Naming and Addressing Concepts

      Identification of Network Nodes

      Identification of Users

  IMS Session Control Functions

     Interrogating Call Session Control Function

      Proxy Call Session Control Function

      Serving Call Session Control Function

      Policy Control Function

      Multi-media Resource Function

  Call Session Control Function Procedures

  Registration Procedures

  De-Registration Procedures

  Interworking with PSTN

  Origination Procedures

  Termination Procedures

  Telephony Application Server (TAS)

  IMS Centralized Services (ICS)

  Voice Call Continuity (VCC)

  IP Protocol

  H.248 Protocol

  Real-time Transport Protocol (RTP)


  Enhanced Voice and Video



         Session Initiation Protocol

  SIP standards

  Register Servers

  Proxies Servers

  Structure and syntax

  Message Content message headers and body

  SIP Methods

  SIP and 3GPP Headers

  Response Codes

  SIP Transactions

  Extension Methods


  Instant Messaging

  Session Description Protocol (SDP)

  Call Flows


      Session establishment roaming

      Session termination

      Interworking - IMS with MSC Server

      Interworking IMS to PSTN

      Subscribe and Notify

      Short Message Service



         Diameter Base Protocol

  Authentication, Authorization & Accounting (AAA) overview


  Diameter specification

  Diameter applications

  Diameter architecture - clients, servers & agents

  Realm-based routing

  Connections & sessions

  Initiating messages

  Diameter requests & answers

  Diameter structure

  AVP structure

  Command codes

  Attribute Value Pair (AVP) codes

  Diameter base protocol commands and answers


  Architecture & entities

  Messages and call flows

  3GPP, credit control SIP



         Diameter in IMS

  IMS reference points

         Cx & Dx reference points

         Diameter messages on the Cx and Dx interfaces

         Sh reference point

         Diameter messages on the Sh interface

  Charging architecture (Online & Offline)

  Policy in the IMS

         Policy Control Function (PCF)


         Diameter in LTE/EPC

  LTE architecture

  EPC architecture

  The Home Subscriber Server (HSS)/AAA

  Enhanced Packet Core (EPC) reference points

         S6a & S6d interfaces

         Diameter messages on the S6a and S6d interfaces

         S13 & S13 interfaces reference point

         Diameter messages on the S13 & s13 interfaces

  Mobility management call flows

  Online and Offline Charging

  Policy in the EPC

         Policy Control Function (PCF)

         Rx interface & Diameter messages

         Go interface & Diameter messages

  Charging in the EPC

         Gy interface & Diameter messages

         Gz interface & Diameter messages



Exercises: Exercises are provided in the course, re-enforcing a practical understanding of the material and analysis of the protocols described.


Course Prerequisites: Basic knowledge of Wireless telephony and signaling would be helpful, but not essential.

Instructors: All of our instructors have years of experience developing and teaching technical courses at Telcordia Technologies (Bellcore) Learning Services in Lisle, IL. They are all CompTIA CTT+ Certified Professionals and SS7 certified.


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