RCS Advanced – Chat Sessions from Zero to Deployment
What you'll learn
- Chat Session Architecture in RCS – Complete Setup for 1 to 1 and Group Messaging
- MSRP Protocol and Transport Path – End to End Media Transfer Configuration in RCS
- Presence Server Functions – Capability Exchange, Subscription, and Notification Flows
- SIP Signaling Procedures – Detailed SIP Message Flows for Session Control in RCS
- IMS Registration Architecture – High-Level Functional Call Flows in IMS-based RCS Networks
- Dedicated Bearer Setup in RCS – QOS Control and Bearer Establishment using PCRF
- Standalone Messaging Modes – Pager Mode, Large Message Support and Application Use Cases
- Messaging Server and Store Functions – Logical Components Supporting Chat and Storage
- Fallback Handling in RCS – Messaging Transition to SMS/MMS When Preconditions Fail
- Group Chat Session Operations – Member Addition, Removal, and Session Lifecycle Handling
Requirements
- Basic Knowledge of Rich Communication Services (RCS)
- I would highly recommend that before attending this course, you must go through my Course on "RCS-Complete Introduction of Rich Communication Services" which will build your basic understanding of RCS as defined by GSMA. That will make it easier for you to go through this course.
Description
Note: This is not just another RCS course. It’s a deep technical dive into real-world RCS Chat Sessions, where you’ll analyze full call flows, learn control signaling, and understand how real-time messaging works across modern IMS networks.
How exactly are 1 to 1 and group chat sessions established in RCS networks using GSMA standards?
What are the required client functions, signaling flows, and media transport mechanisms behind modern RCS deployment?
How do RCS systems fall back to SMS/MMS when capability requirements are not met?
This advanced-level course is designed for those who already understand the basics of Rich Communication Services (RCS) and want to explore the complete picture behind Chat Sessions, Presence Updates, MSRP protocol, Capability Publishing, and more.
You'll walk through each network element involved in message exchange—from registration to bearer setup, and from presence notification to media fallback—based on GSMA-compliant architecture.
If you're working with IMS-based networks or planning real-world RCS deployment, this course will give you the practical, protocol-level insights needed to design and support these services effectively.
Headlines:
1. RCS Chat Sessions – End to End Structure Based on GSMA Guidelines
2. Client Functions and Configuration – Understanding RCS Client Capabilities
3. IMS Registration Flow – Messaging Server Selection & SIP Signaling
4. Presence Server Functions – Capability Publishing and Retrieval in RCS
5. SUBSCRIBE/NOTIFY Mechanism – SIP-Based Presence Exchange
6. MSRP Transport Protocol – QoS Bearer Setup and Media Delivery
7. Standalone Messaging – Pager Mode & Large Message Scenarios
8. 1-to-1 Chat Flows – Detailed SIP/MSRP Call Flow Walkthrough
9. Fallback Handling – Switching to SMS/MMS in Non-RCS Cases
10. Group Chat Operations – Managing Participants and Sessions Dynamically
Enroll now and take your telecom expertise to the next level with advanced RCS knowledge that goes far beyond theory.
If you have any questions during the course, feel free to ask — I provide 24/7 instructor support to help you master these complex topics with confidence.
Who this course is for:
- 4G/5G Project Engineers
- Messaging Technology Analysts
- RCS Project Managers
- Telecom File Transfer Experts
- Chat Session Operations Lead
- Subscribers Communication Specialist
- RCS Solution Architect
- IMS Network Engineer
- SIP Protocol Analysts
- Telecom Signaling Experts
- Advanced RCS Implementers
- Messaging System Integrators
- RCS Client Developers
- GSMA Standards Specialists
- Chat Session Flow Designer
- Telecom QA/Test Engineers
- Mobile Operator Technical Staff
- Presence Server Specialist
- RCS Deployment Engineer
- Professionals Moving from Basic to Advanced RCS
- Graduates of “Introduction to RCS” Course
- Messaging Infrastructure Designers
- Technical Leads in Mobile Core Networks
- Engineers Working on QoS and MSRP Transport
- Students Specializing in Mobile Messaging Protocols
Instructor
- 4.5 Instructor Rating
- 42 Reviews
- 2,618 Students
- 5 Courses
I have a long career working on Wireless Technology spanning over all Generations of Wireless Networks starting from 1G to 5G with Wireless Network Operators or Wireless Network Equipment Vendors.
Most of the time my role was in highly technical positions of Network Engineering, System Engineering or Network Performance and optimization. These types of roles require in depth technical understanding of the project you are involved in.
My course contents on RCS and eSIM are developed using my hands on experience when working on Implementation of RCS with a Tier 1 Operators in USA.