This document outlines the agenda for an IMS course. The course will cover topics such as IMS architecture, standards, protocols, identifiers, call flows, charging, security, presence, subscriber data structures, application servers, VoLTE, centralized services, advanced VoLTE topics, and access device interconnection using Session Border Controllers.

1. IMS Course
Agenda
01/24/13

2. IMS First Approach
• IMS
o What is the IMS
o Why IMS
o Not only VoIP
• IMS Standardization
o 3GPP
o TISPAN
o GSMA
o IETF
o Open Mobile Alliance (OMA)
• IMS Architecture
o HSS
o CSCF
o SBC
o DNS/ENUM
o AS
o MGC/MGW
o PCRF
o IMS Identifiers
o Protocols
o Interfaces
o Interworking with existing networks
o Interworking with access networks and devices
01/24/13

3. IMS going through
IMS & SIP
oRequests and Responses
oHeaders
oSIP Message Flow
oSDP introduction
IMS Identifiers
oThe User Profile
oPrivate Identity
oPublic Identity
oSIP URI /TEL URI Format
oInitial Filter Criteria (iFC)
01/24/13

4. IMS Flows
IMS Call Flow Examples
o Registration
o Service Discovery
o IMS Authentication
o Service Triggers
o Initial Filter Criteria Access and Location Information
• P-Access
• P-Visited
o Controlling Bearer Traffic
o Media negotiation
o S-CSCF Management
o BGCF: Interworking with external network (PSTN/PLMN or IP Networks)
o Application Servers
o Third-Party Call Control
o Conferencing (REFER)
o IMS Messaging (Immediate, Session-Based, Deferred)
01/24/13

5. ..in the IMS domain
• Charging and IMS
o Charging Entities
o Charging Functions
o Interfaces
o Protocols (Diameter)
• Security
o IPSEC
o Key Selection at Registration
o Security for Call Setup
o Authentication
o Securing the Media
o Privacy and Identity
01/24/13

6. ..in the IMS domain
• Presence
o SIMPLE - SIP for Instant Messaging and Presence Leveraging Extensions
o Terminology
o Framework
o Resource List Manipulation Requirements
o Authorization Policy Manipulation
o Acceptance Policy Requirements
o Notification Requirements
o Content Requirements
o General Requirements
• Subscriber Data structure
o Subscriber
o Data Related to Mobile Station Types
o Data Related to Authentication and Ciphering
o Data Related to Roaming
o Data Related to Basic Services
01/24/13

7. Application Servers
• AS Main function
• AS Interfaces
• TAS (Telephony Application Servers)
• Supplementary services
• Service Deployments
01/24/13

8. VoLTE
• Voice Over LTE
• Architecture
• IR 92 GSMA Specifications
• Services
• Terminals
01/24/13

9. Advanced Contents
01/24/13

10. IMS Centralized Services
• Network Evolution
• IP based networks
• Coesistence
• Service Continuity
• SCC AS
• Call Flows
• Interworking
01/24/13

11. VoLTE Advanced
• SR VCC
• Architecture
• 3GPP Rel 9 and 3GPP Rel 10
• Call Flows
• Network Impact
01/24/13

12. Access Device
Interconnection
• SBC role in the Access Architecture
• SBC as entry point in the IMS Network
• IP Based Terminals
• IP Based PBX
• Integration with legacy PBX
• Fax and POS interworking
01/24/13