1.   Introduction Voice over LTE (VoLTE)

• What is VoLTE?
• VoLTE Drivers
• LTE voice evolution—all-IP network
• VoLTE Evolution
• 3GPP Rel 8 Network Architecture
• LTE Voice Solution Alternatives
• Overview of CSFB, VoLGA, SRVCC and Voice over IMS
• LTE Voice Technology Roadmap
• VoLTE System Architecture
• VoLTE Network Configuration with IMS
• Logical Components of VoLTE Solution
• Rich Communication Suite (RCS)
• ICS(IMS Centralized services) 

LTE/EPC Overview

• LTE/SAE/EPC Network Architecture
• Network nodes and roles of HSS, MME, S-GW, P-GW, enhanced Packet Data Gateway (ePDG) and PCRF
• Overview EPS
• EPS network architecture and components(E-UTRAN,EPC-SAE)
• EPS protocol stacks
• EPS bearers – Default & Dedicated
• Basic EPS signaling procedures
• Key Reference points: S1-C/U, S5/S8 S6, S10 and S11
• IP Multimedia Subsystem (IMS) Architecture
• Home Subscriber Server (HSS)
• Policy and Charging Rule Function (PCRF)
• Overview of IMS Profile for Voice and SMS

3. IMS Essential

• IMS network architecture
• Role of CSCF, MGCF, IM-MGW, HSS, AS,MRFC,MRFP,SBC
• User addressing in IMS
• End-to-end signalling and traffic flow

4. Protocols in VoLTE EcosystemSIP and SDP

   • Diameter
   • H.248 (Megaco)
   • RTP and RTCP

5. VoLTE Access Procedures

• PDN connection for IMS APN
• Default EPS bearer setup
• P-CSCF Discovery 
• SIP Registration 
• IMS registration procedures
• Overview of AKAv2-MD5
• IMS authentication

6. QoS introduction in LTE-EPC

• QoS in LTE-EPC
• PCC architecture
• PCRF, PCEF Interaction
• Interfaces: Gx, Rx Use case
• GBR  and Non-GBR for services in IMS
• Standardized QCIs for LTE

7. VoLTE Call Management

• Voice call setup in IMS
• PCC Procedures
• SIP/SDP message explained
• Media Negotiations
• Emergency calls in IMS

8. IMS Services and SMS Interworking

• Service architecture and role of AS
• MMTel /TAS Server
• Example supplementary services
• Role of RCS and MMTel
• SMS Interworking
•  SMS Delivery flow in IMS – MO/MT

9.  9. Charging introduction

• Overview of network nodes
• Offline and online charging
• Charging identifiers
• Interfaces – Ro,Rf
• ACR,CDR’s
• Charging procedures
• ACR’s