Mastering IMS Core Architecture for Future-Proof Telecommunications Networks
You're under pressure. Your network planning meetings are getting harder. The demands on scalability, security, and service agility grow every quarter. 5G is live, 6G is on the horizon, and you can't afford to be left behind with legacy assumptions about how core networks should operate. Traditional architectures are breaking. Interoperability gaps cost your team weeks. Integration delays delay revenue. You need certainty. You need a clear, structured, battle-tested mastery of the IP Multimedia Subsystem - not just theory, but the kind of deep operational fluency that lets you design, deploy, and defend IMS at enterprise scale. This is where Mastering IMS Core Architecture for Future-Proof Telecommunications Networks transforms your career. This is not another surface-level overview. It’s the exact blueprint used by senior architects at global operators to go from fragmented knowledge to board-ready design authority - in as little as 21 days. One course graduate, Ahmed R., Principal Network Architect at a Tier-1 European telco, used this training to redesign his company’s IMS edge layer and accelerate VoLTE deployment by 8 weeks, saving over $1.2M in project delays. He didn’t just learn diagrams - he gained a decision framework that withstood internal audits and vendor scrutiny. If you're navigating high-stakes decisions around session control, service orchestration, or security in converged networks, this course delivers something rare: predictable outcomes. You’ll build a complete, documented, future-aligned IMS architecture - backed by industry-standard methodology and ready to present to leadership. No more guessing. No more patching concepts together from outdated forums. This is your exit from ambiguity. Here’s how this course is structured to help you get there.Course Format & Delivery Details: Clarity, Certainty, Lifetime Access Designed from the ground up for professionals who value precision, this course is self-paced, with immediate online access upon enrollment. There are no fixed dates, no deadlines, and no time-pressure. You control your schedule - study during downtime, weekends, or global deployments. The structure adapts to your reality, not the other way around. Lifetime Access, Zero Expiry, Always Up to Date
Once enrolled, you receive lifetime access to all course content. This isn’t a time-limited license. As IMS standards evolve and new best practices emerge, we update the materials at no extra cost to you. Your investment future-proofs itself. Most learners complete the core modules in 25 to 30 hours of focused study. Many report being able to apply a first architecture sketch or test design within 72 hours of starting. You’re not waiting months to see results - clarity begins on day one. Learn Anywhere, Anytime, On Any Device
The course is fully mobile-friendly. Access all content seamlessly from your laptop, tablet, or smartphone. Whether you're on site at a NOC, in a data center, or traveling internationally, your progress syncs across devices. Study during transit, review during downtime, retain all your work permanently. Direct Architect-Level Guidance & Support
You’re not alone. Throughout the program, you have access to targeted instructor support. Submit technical queries, architecture dilemmas, or integration challenges - and receive direct feedback from IMS practitioners with over 15 years of deployment experience across global carriers and multinational vendors. Certificate of Completion from The Art of Service
Upon successful completion, you’ll earn a globally recognised Certificate of Completion issued by The Art of Service. This certification is used by professionals in over 140 countries to validate expertise, justify promotions, and strengthen technical authority. It carries trust because the methodology is auditable, structured, and outcome-based. The Art of Service is referenced across telecommunications training frameworks, cited in ITU workshops, and aligned with ETSI, 3GPP, and TM Forum standards. This is not a generic badge - it’s proof of structured mastery. Transparent, Simple Pricing - No Hidden Fees, No Surprises
You pay a single, straightforward fee. There are no recurring charges, upsells, or premium tiers. What you see is exactly what you get - full access, forever. We accept all major payment methods including Visa, Mastercard, and PayPal. Transactions are encrypted and processed securely. Your payment information is never stored on our systems. 100% Satisfied or Refunded - Zero Risk Enrollment
We guarantee your satisfaction. If you complete the first two modules and feel this course isn’t delivering on its promise, simply contact us for a full refund - no questions, no hassle. We reverse the risk so you can move forward with confidence. After enrollment, you’ll receive a confirmation email. Your access credentials and login instructions will follow once your course materials are fully provisioned - ensuring a secure and accurate setup process. “Will This Work for Me?” - Addressing Your Biggest Doubt
We hear this often. Especially from architects who’ve survived vendor lock-in, fragmented documentation, or rushed deployments. This course works even if you’ve never led a full IMS rollout. Even if your last exposure was limited to SIP tracing or edge firewall rules. Even if your team uses a mix of legacy and modern platforms. One Systems Engineer in Brazil told us: “I knew IMS in fragments - from troubleshooting only. This course showed me how the entire puzzle locks together. Within 10 days, I presented a unified architecture model that became our new reference design.” Another Senior Consultant in Singapore used the course to win a $4.7M network modernization bid - because she could confidently map IMS components to ETSI NFV standards, something her competitors couldn't demonstrate. The methodology is role-agnostic. Whether you're in network planning, systems integration, security, or product architecture - you get the same structured, audit-ready framework used by industry leaders. Your background doesn’t matter. What matters is that you leave with certainty, clarity, and a documented architecture that stands up to scrutiny.
Module 1: Foundations of IMS Core Architecture - Understanding the Evolution from PSTN to IMS-Based Networks
- Defining Key IMS Use Cases in Modern Telecommunications
- Core Principles of SIP-Based Signaling in IMS
- Layered Architecture of the IP Multimedia Subsystem
- The Role of the IMS Core in 5G and Beyond
- Differentiating IMS from Traditional VoIP Architectures
- Overview of 3GPP Specifications Relevant to IMS
- Understanding the Role of IETF Standards in IMS Design
- Key Drivers for IMS Adoption in Global Operators
- Fundamentals of Real-Time Communication Services
- Principles of Control and Media Plane Separation
- Brief History of IMS Standardization Efforts
- Understanding the Role of MNOs, MVNOs, and IMS
- Overview of IMS Network Domains and Zones
- Introduction to Inter-Operator IMS (IPX)
Module 2: Core Network Elements and Their Functions - CSCF Types and Their Roles in IMS Signaling
- Proxy-CSCF (P-CSCF) Architecture and Behavior
- Interrogating-CSCF (I-CSCF) and Query Resolution
- Serving-CSCF (S-CSCF) as the Central Control Node
- Home Subscriber Server (HSS) and User Profile Management
- HSS Integration with Authentication and Authorization
- Media Resource Function (MRF) and Media Handling
- Media Gateway Control Function (MGCF) for PSTN Interworking
- Media Gateway (MGW) and Legacy Network Integration
- Breakout Gateway Control Function (BGCF) and Call Routing
- Application Server (AS) and Service Execution
- Presence Server and Event Notification Systems
- Session Border Controller (SBC) in IMS Architecture
- SBC Roles in Security, Topology Hiding, and Media Security
- Emergency Call Handling and E-CSCF Functionality
Module 3: IMS Signaling and Protocol Stack Deep Dive - Detailed SIP Message Flow in IMS Registration
- SIP Register, INVITE, and SUBSCRIBE Methods in Practice
- Understanding SIP Headers Unique to IMS (P-Header Fields)
- Diameter Protocol Overview and Its Role in IMS
- Diameter Base Protocol and Application Extensions
- Diameter Ro and Rf Interfaces for Charging
- Diameter Sh Interface for HSS and Application Server Sync
- Diameter Cx Interface for CSCF and HSS Communication
- Diameter Dx and Dx Interface for I-CSCF to HSS
- Use of RTP and RTCP in Media Transmission
- Secure Real-time Transport Protocol (SRTP) and Key Management
- ZRTP and DTLS-SRTP for End-to-End Media Security
- Role of SDP in Session Negotiation and Codec Selection
- Understanding SIP Extensions for IMS (RFC 3608, RFC 4457)
- Options for SIP Compression and Bandwidth Optimization
Module 4: Identity, Authentication, and Security Frameworks - IMS AKA (Authentication and Key Agreement) Protocol
- Challenge-Response Mechanism in IMS Authentication
- Use of USIM Cards and Cryptographic Credentials
- Role of ISIM Application in Subscriber Identity
- Public Service Identity (PSI) and User Identity Management
- Private User Identity (private identity) Provisioning
- Public User Identity (IMPU) and Addressing Schemes
- Session Security Using IPsec in IMS Access Networks
- Establishing IPsec Security Associations (SA) with P-CSCF
- SIP Identity Headers and Integrity Protection
- Security Edge Protection Proxy (SEPP) in 5G Roaming
- SEPP Signaling Protection Between Interconnected Networks
- Firewall and ACL Configuration for IMS Core Elements
- Secure Communication Between CSCF and HSS via Diameter over TLS
- Threat Modeling for IMS Eavesdropping and Spoofing
Module 5: Registration, Session Control, and Call Flow Management - Step-by-Step IMS Registration Process
- Initial Registration and Subscriber Profile Download
- Multimedia Authentication using Authentication Vectors
- Establishing Secure SIP Signaling Channels
- Session Establishment with Initial Filter Criteria (iFC)
- Service Triggering Based on iFC Rules
- Preconditions and Session Capabilities Negotiation
- Call Flow for IMS-to-IMS Voice Calls
- Call Flow for IMS-to-PSTN Interworking
- Call Flow for PSTN-to-IMS Termination
- Call Hold, Transfer, and Conference Scenarios
- Dial String Interpretation and Number Normalization
- Role of the BGCF in Call Routing Decisions
- Hunting and Failover Strategies in CSCF Clusters
- Graceful Degradation During Core Node Failures
Module 6: Quality of Service and Traffic Prioritization - End-to-End QoS Architecture in IMS Networks
- Resource Reservation and Admission Control (RSVP, NSIS)
- Differentiated Services (DiffServ) Code Points in IMS
- IEEE 802.1p and VLAN Tagging for Access QoS
- Policy and Charging Control (PCC) Framework Overview
- Role of the Policy and Charging Rules Function (PCRF)
- Online and Offline Charging Interaction with PCC
- Gx Interface Between PCEF and PCRF
- Gy Interface for Online Charging with OCS
- Gz Interface for Offline Charging with IMS Charging System
- Dynamic QoS Adjustment Based on Subscriber Tier
- Support for Premium Services and SLA Enforcement
- Media Stream Prioritization in Routers and Switches
- Jitter, Latency, and Packet Loss Tolerance Thresholds
- QoS Monitoring Tools and Threshold Alerts
Module 7: Presence, Messaging, and Rich Communication Services - Presence Service Architecture in IMS
- SUBSCRIBE and NOTIFY Methods in Presence Systems
- Presence Authorization Policies and Privacy Rules
- Rich Communication Suite (RCS) and Joyn Standards
- Chat, File Transfer, and Group Messaging with IMS
- Video Share and Screen Share Implementations
- Location-Based Services in RCS Frameworks
- Integration of RCS with Messaging Hubs
- Interoperability Between IMS Operators via GSMA IR.92
- RCS Universal Profile and Compliance Requirements
- Handling of Offline Messages and Message Store Access
- Instant Messaging Over IP (IMPI) vs. User-Level IM
- Secure Messaging Using Identity Binding and Encryption
- Message Synchronization Across Devices
- Anti-Spam and Abuse Detection in Messaging Systems
Module 8: IMS Roaming and Interconnection Models - Home-Routed vs. Local Breakout Roaming Architectures
- Trusted vs. Untrusted Non-3GPP Access Roaming
- Interconnection via IPX Providers and Peering Agreements
- Functionality of the IBCF and TrGW in Inter-Provider Links
- Topology Hiding and Interworking Using SBCs
- Diameter Edge Agent (DEA) for Roaming Security
- S6a and S6d Interfaces in Roaming Scenarios
- Subscriber Profile Replication and Caching Strategies
- Billing and Charging for Roaming IMS Services
- Fraud Detection in International Roaming Traffic
- Latency Minimization in Multi-Hop Roaming Paths
- Support for Wi-Fi Calling While Roaming
- VoLTE Roaming Interoperability Testing
- Use of Global Title Translation in Signaling Routing
- Roaming Agreements with MVNOs and Partner Operators
Module 9: High Availability, Redundancy, and Resilience - Designing for 99.999% Uptime in IMS Core
- Active-Standby vs. Active-Active CSCF Deployments
- Database Replication and Split-Brain Scenarios in HSS
- Heartbeat Monitoring and Failover Detection
- State Synchronization Between Redundant Nodes
- Load Balancing Strategies for P-CSCF and I-CSCF
- Use of Virtual IP Addresses and Floating Interfaces
- Clustering Models for Application Servers
- Session Recovery After Core Node Failure
- Disaster Recovery Planning for IMS Data Centers
- Backup and Restore Procedures for HSS Databases
- Geo-Redundant IMS Deployments Across Data Centers
- Split Site Architectures for Business Continuity
- Automated Health Checks and Proactive Alerts
- Testing Failover with Simulated Network Disruptions
Module 10: Integration with 5G and Service-Based Architecture - IMS in 5G Standalone (5G SA) Networks
- N7 and N11 Interfaces Between 5GC and IMS
- Mapping of 5G NAS Signaling to IMS Registration
- Use of Service-Based Interface (SBI) for Control Plane
- Application of HTTP/2 and JSON in 5G Core Integration
- Interworking Between AMF and P-CSCF via N26 Interface
- Emergency Services in 5G with IMS and NEF
- Network Exposure Function (NEF) for IMS API Access
- Edge Computing and IMS Latency Optimization
- Network Slicing and IMS Service Isolation
- Support for Ultra-Reliable Low-Latency Communication (URLLC)
- IMS Integration with AR/VR and Holographic Calls
- 5G Positioning for Emergency IMS Calls
- Session Continuity Between 5G NR and Wi-Fi 6
- Non-Public Networks (NPN) and IMS for Enterprise 5G
Module 11: Troubleshooting, Monitoring, and Operations - Common IMS Registration Failures and Root Causes
- SIP Response Code Analysis (4xx, 5xx, 6xx)
- Debugging Diameter Disconnect Messages
- Log Correlation Across P-CSCF, I-CSCF, and S-CSCF
- Using Trace Tools for End-to-End Session Flow
- Monitoring CPU, Memory, and Session Load on CSCF Nodes
- SNMP and NETCONF for Remote Device Management
- Centralized Log Aggregation Using ELK Stack or Splunk
- Real-Time Dashboard for IMS Network Health
- Automated Alerting for High Failure Rates
- Troubleshooting Media Path: RTP Loops and Silence
- Call Quality Diagnostic Tools (Wireshark, probes)
- User Plane vs. Control Plane Failure Isolation
- Performing Firmware Upgrade Impact Assessments
- Rollback Strategies During Failed Configurations
Module 12: Certification, Career Advancement, and Practical Deployment - Preparing Your IMS Architecture Design Project
- Documenting Design Decisions with Justification
- Mapping Architecture to 3GPP Release Standards
- Aligning Design with Operator Business Requirements
- Presenting Your Architecture to Technical and Executive Stakeholders
- Defending Design Choices in Peer Review
- Integrating Vendor Product Constraints into Planning
- Conducting a Design Walkthrough Simulation
- Final Assessment and Expert Review Criteria
- Earning Your Certificate of Completion from The Art of Service
- How to List Your Certification on LinkedIn and Resumes
- Leveraging This Credential in Salary Negotiations
- Using the Certification to Justify Promotion or Transfer
- Joining the Global IMS Practitioners Network
- Continuing Education Pathways in 6G and Quantum Networking
- Understanding the Evolution from PSTN to IMS-Based Networks
- Defining Key IMS Use Cases in Modern Telecommunications
- Core Principles of SIP-Based Signaling in IMS
- Layered Architecture of the IP Multimedia Subsystem
- The Role of the IMS Core in 5G and Beyond
- Differentiating IMS from Traditional VoIP Architectures
- Overview of 3GPP Specifications Relevant to IMS
- Understanding the Role of IETF Standards in IMS Design
- Key Drivers for IMS Adoption in Global Operators
- Fundamentals of Real-Time Communication Services
- Principles of Control and Media Plane Separation
- Brief History of IMS Standardization Efforts
- Understanding the Role of MNOs, MVNOs, and IMS
- Overview of IMS Network Domains and Zones
- Introduction to Inter-Operator IMS (IPX)
Module 2: Core Network Elements and Their Functions - CSCF Types and Their Roles in IMS Signaling
- Proxy-CSCF (P-CSCF) Architecture and Behavior
- Interrogating-CSCF (I-CSCF) and Query Resolution
- Serving-CSCF (S-CSCF) as the Central Control Node
- Home Subscriber Server (HSS) and User Profile Management
- HSS Integration with Authentication and Authorization
- Media Resource Function (MRF) and Media Handling
- Media Gateway Control Function (MGCF) for PSTN Interworking
- Media Gateway (MGW) and Legacy Network Integration
- Breakout Gateway Control Function (BGCF) and Call Routing
- Application Server (AS) and Service Execution
- Presence Server and Event Notification Systems
- Session Border Controller (SBC) in IMS Architecture
- SBC Roles in Security, Topology Hiding, and Media Security
- Emergency Call Handling and E-CSCF Functionality
Module 3: IMS Signaling and Protocol Stack Deep Dive - Detailed SIP Message Flow in IMS Registration
- SIP Register, INVITE, and SUBSCRIBE Methods in Practice
- Understanding SIP Headers Unique to IMS (P-Header Fields)
- Diameter Protocol Overview and Its Role in IMS
- Diameter Base Protocol and Application Extensions
- Diameter Ro and Rf Interfaces for Charging
- Diameter Sh Interface for HSS and Application Server Sync
- Diameter Cx Interface for CSCF and HSS Communication
- Diameter Dx and Dx Interface for I-CSCF to HSS
- Use of RTP and RTCP in Media Transmission
- Secure Real-time Transport Protocol (SRTP) and Key Management
- ZRTP and DTLS-SRTP for End-to-End Media Security
- Role of SDP in Session Negotiation and Codec Selection
- Understanding SIP Extensions for IMS (RFC 3608, RFC 4457)
- Options for SIP Compression and Bandwidth Optimization
Module 4: Identity, Authentication, and Security Frameworks - IMS AKA (Authentication and Key Agreement) Protocol
- Challenge-Response Mechanism in IMS Authentication
- Use of USIM Cards and Cryptographic Credentials
- Role of ISIM Application in Subscriber Identity
- Public Service Identity (PSI) and User Identity Management
- Private User Identity (private identity) Provisioning
- Public User Identity (IMPU) and Addressing Schemes
- Session Security Using IPsec in IMS Access Networks
- Establishing IPsec Security Associations (SA) with P-CSCF
- SIP Identity Headers and Integrity Protection
- Security Edge Protection Proxy (SEPP) in 5G Roaming
- SEPP Signaling Protection Between Interconnected Networks
- Firewall and ACL Configuration for IMS Core Elements
- Secure Communication Between CSCF and HSS via Diameter over TLS
- Threat Modeling for IMS Eavesdropping and Spoofing
Module 5: Registration, Session Control, and Call Flow Management - Step-by-Step IMS Registration Process
- Initial Registration and Subscriber Profile Download
- Multimedia Authentication using Authentication Vectors
- Establishing Secure SIP Signaling Channels
- Session Establishment with Initial Filter Criteria (iFC)
- Service Triggering Based on iFC Rules
- Preconditions and Session Capabilities Negotiation
- Call Flow for IMS-to-IMS Voice Calls
- Call Flow for IMS-to-PSTN Interworking
- Call Flow for PSTN-to-IMS Termination
- Call Hold, Transfer, and Conference Scenarios
- Dial String Interpretation and Number Normalization
- Role of the BGCF in Call Routing Decisions
- Hunting and Failover Strategies in CSCF Clusters
- Graceful Degradation During Core Node Failures
Module 6: Quality of Service and Traffic Prioritization - End-to-End QoS Architecture in IMS Networks
- Resource Reservation and Admission Control (RSVP, NSIS)
- Differentiated Services (DiffServ) Code Points in IMS
- IEEE 802.1p and VLAN Tagging for Access QoS
- Policy and Charging Control (PCC) Framework Overview
- Role of the Policy and Charging Rules Function (PCRF)
- Online and Offline Charging Interaction with PCC
- Gx Interface Between PCEF and PCRF
- Gy Interface for Online Charging with OCS
- Gz Interface for Offline Charging with IMS Charging System
- Dynamic QoS Adjustment Based on Subscriber Tier
- Support for Premium Services and SLA Enforcement
- Media Stream Prioritization in Routers and Switches
- Jitter, Latency, and Packet Loss Tolerance Thresholds
- QoS Monitoring Tools and Threshold Alerts
Module 7: Presence, Messaging, and Rich Communication Services - Presence Service Architecture in IMS
- SUBSCRIBE and NOTIFY Methods in Presence Systems
- Presence Authorization Policies and Privacy Rules
- Rich Communication Suite (RCS) and Joyn Standards
- Chat, File Transfer, and Group Messaging with IMS
- Video Share and Screen Share Implementations
- Location-Based Services in RCS Frameworks
- Integration of RCS with Messaging Hubs
- Interoperability Between IMS Operators via GSMA IR.92
- RCS Universal Profile and Compliance Requirements
- Handling of Offline Messages and Message Store Access
- Instant Messaging Over IP (IMPI) vs. User-Level IM
- Secure Messaging Using Identity Binding and Encryption
- Message Synchronization Across Devices
- Anti-Spam and Abuse Detection in Messaging Systems
Module 8: IMS Roaming and Interconnection Models - Home-Routed vs. Local Breakout Roaming Architectures
- Trusted vs. Untrusted Non-3GPP Access Roaming
- Interconnection via IPX Providers and Peering Agreements
- Functionality of the IBCF and TrGW in Inter-Provider Links
- Topology Hiding and Interworking Using SBCs
- Diameter Edge Agent (DEA) for Roaming Security
- S6a and S6d Interfaces in Roaming Scenarios
- Subscriber Profile Replication and Caching Strategies
- Billing and Charging for Roaming IMS Services
- Fraud Detection in International Roaming Traffic
- Latency Minimization in Multi-Hop Roaming Paths
- Support for Wi-Fi Calling While Roaming
- VoLTE Roaming Interoperability Testing
- Use of Global Title Translation in Signaling Routing
- Roaming Agreements with MVNOs and Partner Operators
Module 9: High Availability, Redundancy, and Resilience - Designing for 99.999% Uptime in IMS Core
- Active-Standby vs. Active-Active CSCF Deployments
- Database Replication and Split-Brain Scenarios in HSS
- Heartbeat Monitoring and Failover Detection
- State Synchronization Between Redundant Nodes
- Load Balancing Strategies for P-CSCF and I-CSCF
- Use of Virtual IP Addresses and Floating Interfaces
- Clustering Models for Application Servers
- Session Recovery After Core Node Failure
- Disaster Recovery Planning for IMS Data Centers
- Backup and Restore Procedures for HSS Databases
- Geo-Redundant IMS Deployments Across Data Centers
- Split Site Architectures for Business Continuity
- Automated Health Checks and Proactive Alerts
- Testing Failover with Simulated Network Disruptions
Module 10: Integration with 5G and Service-Based Architecture - IMS in 5G Standalone (5G SA) Networks
- N7 and N11 Interfaces Between 5GC and IMS
- Mapping of 5G NAS Signaling to IMS Registration
- Use of Service-Based Interface (SBI) for Control Plane
- Application of HTTP/2 and JSON in 5G Core Integration
- Interworking Between AMF and P-CSCF via N26 Interface
- Emergency Services in 5G with IMS and NEF
- Network Exposure Function (NEF) for IMS API Access
- Edge Computing and IMS Latency Optimization
- Network Slicing and IMS Service Isolation
- Support for Ultra-Reliable Low-Latency Communication (URLLC)
- IMS Integration with AR/VR and Holographic Calls
- 5G Positioning for Emergency IMS Calls
- Session Continuity Between 5G NR and Wi-Fi 6
- Non-Public Networks (NPN) and IMS for Enterprise 5G
Module 11: Troubleshooting, Monitoring, and Operations - Common IMS Registration Failures and Root Causes
- SIP Response Code Analysis (4xx, 5xx, 6xx)
- Debugging Diameter Disconnect Messages
- Log Correlation Across P-CSCF, I-CSCF, and S-CSCF
- Using Trace Tools for End-to-End Session Flow
- Monitoring CPU, Memory, and Session Load on CSCF Nodes
- SNMP and NETCONF for Remote Device Management
- Centralized Log Aggregation Using ELK Stack or Splunk
- Real-Time Dashboard for IMS Network Health
- Automated Alerting for High Failure Rates
- Troubleshooting Media Path: RTP Loops and Silence
- Call Quality Diagnostic Tools (Wireshark, probes)
- User Plane vs. Control Plane Failure Isolation
- Performing Firmware Upgrade Impact Assessments
- Rollback Strategies During Failed Configurations
Module 12: Certification, Career Advancement, and Practical Deployment - Preparing Your IMS Architecture Design Project
- Documenting Design Decisions with Justification
- Mapping Architecture to 3GPP Release Standards
- Aligning Design with Operator Business Requirements
- Presenting Your Architecture to Technical and Executive Stakeholders
- Defending Design Choices in Peer Review
- Integrating Vendor Product Constraints into Planning
- Conducting a Design Walkthrough Simulation
- Final Assessment and Expert Review Criteria
- Earning Your Certificate of Completion from The Art of Service
- How to List Your Certification on LinkedIn and Resumes
- Leveraging This Credential in Salary Negotiations
- Using the Certification to Justify Promotion or Transfer
- Joining the Global IMS Practitioners Network
- Continuing Education Pathways in 6G and Quantum Networking
- Detailed SIP Message Flow in IMS Registration
- SIP Register, INVITE, and SUBSCRIBE Methods in Practice
- Understanding SIP Headers Unique to IMS (P-Header Fields)
- Diameter Protocol Overview and Its Role in IMS
- Diameter Base Protocol and Application Extensions
- Diameter Ro and Rf Interfaces for Charging
- Diameter Sh Interface for HSS and Application Server Sync
- Diameter Cx Interface for CSCF and HSS Communication
- Diameter Dx and Dx Interface for I-CSCF to HSS
- Use of RTP and RTCP in Media Transmission
- Secure Real-time Transport Protocol (SRTP) and Key Management
- ZRTP and DTLS-SRTP for End-to-End Media Security
- Role of SDP in Session Negotiation and Codec Selection
- Understanding SIP Extensions for IMS (RFC 3608, RFC 4457)
- Options for SIP Compression and Bandwidth Optimization
Module 4: Identity, Authentication, and Security Frameworks - IMS AKA (Authentication and Key Agreement) Protocol
- Challenge-Response Mechanism in IMS Authentication
- Use of USIM Cards and Cryptographic Credentials
- Role of ISIM Application in Subscriber Identity
- Public Service Identity (PSI) and User Identity Management
- Private User Identity (private identity) Provisioning
- Public User Identity (IMPU) and Addressing Schemes
- Session Security Using IPsec in IMS Access Networks
- Establishing IPsec Security Associations (SA) with P-CSCF
- SIP Identity Headers and Integrity Protection
- Security Edge Protection Proxy (SEPP) in 5G Roaming
- SEPP Signaling Protection Between Interconnected Networks
- Firewall and ACL Configuration for IMS Core Elements
- Secure Communication Between CSCF and HSS via Diameter over TLS
- Threat Modeling for IMS Eavesdropping and Spoofing
Module 5: Registration, Session Control, and Call Flow Management - Step-by-Step IMS Registration Process
- Initial Registration and Subscriber Profile Download
- Multimedia Authentication using Authentication Vectors
- Establishing Secure SIP Signaling Channels
- Session Establishment with Initial Filter Criteria (iFC)
- Service Triggering Based on iFC Rules
- Preconditions and Session Capabilities Negotiation
- Call Flow for IMS-to-IMS Voice Calls
- Call Flow for IMS-to-PSTN Interworking
- Call Flow for PSTN-to-IMS Termination
- Call Hold, Transfer, and Conference Scenarios
- Dial String Interpretation and Number Normalization
- Role of the BGCF in Call Routing Decisions
- Hunting and Failover Strategies in CSCF Clusters
- Graceful Degradation During Core Node Failures
Module 6: Quality of Service and Traffic Prioritization - End-to-End QoS Architecture in IMS Networks
- Resource Reservation and Admission Control (RSVP, NSIS)
- Differentiated Services (DiffServ) Code Points in IMS
- IEEE 802.1p and VLAN Tagging for Access QoS
- Policy and Charging Control (PCC) Framework Overview
- Role of the Policy and Charging Rules Function (PCRF)
- Online and Offline Charging Interaction with PCC
- Gx Interface Between PCEF and PCRF
- Gy Interface for Online Charging with OCS
- Gz Interface for Offline Charging with IMS Charging System
- Dynamic QoS Adjustment Based on Subscriber Tier
- Support for Premium Services and SLA Enforcement
- Media Stream Prioritization in Routers and Switches
- Jitter, Latency, and Packet Loss Tolerance Thresholds
- QoS Monitoring Tools and Threshold Alerts
Module 7: Presence, Messaging, and Rich Communication Services - Presence Service Architecture in IMS
- SUBSCRIBE and NOTIFY Methods in Presence Systems
- Presence Authorization Policies and Privacy Rules
- Rich Communication Suite (RCS) and Joyn Standards
- Chat, File Transfer, and Group Messaging with IMS
- Video Share and Screen Share Implementations
- Location-Based Services in RCS Frameworks
- Integration of RCS with Messaging Hubs
- Interoperability Between IMS Operators via GSMA IR.92
- RCS Universal Profile and Compliance Requirements
- Handling of Offline Messages and Message Store Access
- Instant Messaging Over IP (IMPI) vs. User-Level IM
- Secure Messaging Using Identity Binding and Encryption
- Message Synchronization Across Devices
- Anti-Spam and Abuse Detection in Messaging Systems
Module 8: IMS Roaming and Interconnection Models - Home-Routed vs. Local Breakout Roaming Architectures
- Trusted vs. Untrusted Non-3GPP Access Roaming
- Interconnection via IPX Providers and Peering Agreements
- Functionality of the IBCF and TrGW in Inter-Provider Links
- Topology Hiding and Interworking Using SBCs
- Diameter Edge Agent (DEA) for Roaming Security
- S6a and S6d Interfaces in Roaming Scenarios
- Subscriber Profile Replication and Caching Strategies
- Billing and Charging for Roaming IMS Services
- Fraud Detection in International Roaming Traffic
- Latency Minimization in Multi-Hop Roaming Paths
- Support for Wi-Fi Calling While Roaming
- VoLTE Roaming Interoperability Testing
- Use of Global Title Translation in Signaling Routing
- Roaming Agreements with MVNOs and Partner Operators
Module 9: High Availability, Redundancy, and Resilience - Designing for 99.999% Uptime in IMS Core
- Active-Standby vs. Active-Active CSCF Deployments
- Database Replication and Split-Brain Scenarios in HSS
- Heartbeat Monitoring and Failover Detection
- State Synchronization Between Redundant Nodes
- Load Balancing Strategies for P-CSCF and I-CSCF
- Use of Virtual IP Addresses and Floating Interfaces
- Clustering Models for Application Servers
- Session Recovery After Core Node Failure
- Disaster Recovery Planning for IMS Data Centers
- Backup and Restore Procedures for HSS Databases
- Geo-Redundant IMS Deployments Across Data Centers
- Split Site Architectures for Business Continuity
- Automated Health Checks and Proactive Alerts
- Testing Failover with Simulated Network Disruptions
Module 10: Integration with 5G and Service-Based Architecture - IMS in 5G Standalone (5G SA) Networks
- N7 and N11 Interfaces Between 5GC and IMS
- Mapping of 5G NAS Signaling to IMS Registration
- Use of Service-Based Interface (SBI) for Control Plane
- Application of HTTP/2 and JSON in 5G Core Integration
- Interworking Between AMF and P-CSCF via N26 Interface
- Emergency Services in 5G with IMS and NEF
- Network Exposure Function (NEF) for IMS API Access
- Edge Computing and IMS Latency Optimization
- Network Slicing and IMS Service Isolation
- Support for Ultra-Reliable Low-Latency Communication (URLLC)
- IMS Integration with AR/VR and Holographic Calls
- 5G Positioning for Emergency IMS Calls
- Session Continuity Between 5G NR and Wi-Fi 6
- Non-Public Networks (NPN) and IMS for Enterprise 5G
Module 11: Troubleshooting, Monitoring, and Operations - Common IMS Registration Failures and Root Causes
- SIP Response Code Analysis (4xx, 5xx, 6xx)
- Debugging Diameter Disconnect Messages
- Log Correlation Across P-CSCF, I-CSCF, and S-CSCF
- Using Trace Tools for End-to-End Session Flow
- Monitoring CPU, Memory, and Session Load on CSCF Nodes
- SNMP and NETCONF for Remote Device Management
- Centralized Log Aggregation Using ELK Stack or Splunk
- Real-Time Dashboard for IMS Network Health
- Automated Alerting for High Failure Rates
- Troubleshooting Media Path: RTP Loops and Silence
- Call Quality Diagnostic Tools (Wireshark, probes)
- User Plane vs. Control Plane Failure Isolation
- Performing Firmware Upgrade Impact Assessments
- Rollback Strategies During Failed Configurations
Module 12: Certification, Career Advancement, and Practical Deployment - Preparing Your IMS Architecture Design Project
- Documenting Design Decisions with Justification
- Mapping Architecture to 3GPP Release Standards
- Aligning Design with Operator Business Requirements
- Presenting Your Architecture to Technical and Executive Stakeholders
- Defending Design Choices in Peer Review
- Integrating Vendor Product Constraints into Planning
- Conducting a Design Walkthrough Simulation
- Final Assessment and Expert Review Criteria
- Earning Your Certificate of Completion from The Art of Service
- How to List Your Certification on LinkedIn and Resumes
- Leveraging This Credential in Salary Negotiations
- Using the Certification to Justify Promotion or Transfer
- Joining the Global IMS Practitioners Network
- Continuing Education Pathways in 6G and Quantum Networking
- Step-by-Step IMS Registration Process
- Initial Registration and Subscriber Profile Download
- Multimedia Authentication using Authentication Vectors
- Establishing Secure SIP Signaling Channels
- Session Establishment with Initial Filter Criteria (iFC)
- Service Triggering Based on iFC Rules
- Preconditions and Session Capabilities Negotiation
- Call Flow for IMS-to-IMS Voice Calls
- Call Flow for IMS-to-PSTN Interworking
- Call Flow for PSTN-to-IMS Termination
- Call Hold, Transfer, and Conference Scenarios
- Dial String Interpretation and Number Normalization
- Role of the BGCF in Call Routing Decisions
- Hunting and Failover Strategies in CSCF Clusters
- Graceful Degradation During Core Node Failures
Module 6: Quality of Service and Traffic Prioritization - End-to-End QoS Architecture in IMS Networks
- Resource Reservation and Admission Control (RSVP, NSIS)
- Differentiated Services (DiffServ) Code Points in IMS
- IEEE 802.1p and VLAN Tagging for Access QoS
- Policy and Charging Control (PCC) Framework Overview
- Role of the Policy and Charging Rules Function (PCRF)
- Online and Offline Charging Interaction with PCC
- Gx Interface Between PCEF and PCRF
- Gy Interface for Online Charging with OCS
- Gz Interface for Offline Charging with IMS Charging System
- Dynamic QoS Adjustment Based on Subscriber Tier
- Support for Premium Services and SLA Enforcement
- Media Stream Prioritization in Routers and Switches
- Jitter, Latency, and Packet Loss Tolerance Thresholds
- QoS Monitoring Tools and Threshold Alerts
Module 7: Presence, Messaging, and Rich Communication Services - Presence Service Architecture in IMS
- SUBSCRIBE and NOTIFY Methods in Presence Systems
- Presence Authorization Policies and Privacy Rules
- Rich Communication Suite (RCS) and Joyn Standards
- Chat, File Transfer, and Group Messaging with IMS
- Video Share and Screen Share Implementations
- Location-Based Services in RCS Frameworks
- Integration of RCS with Messaging Hubs
- Interoperability Between IMS Operators via GSMA IR.92
- RCS Universal Profile and Compliance Requirements
- Handling of Offline Messages and Message Store Access
- Instant Messaging Over IP (IMPI) vs. User-Level IM
- Secure Messaging Using Identity Binding and Encryption
- Message Synchronization Across Devices
- Anti-Spam and Abuse Detection in Messaging Systems
Module 8: IMS Roaming and Interconnection Models - Home-Routed vs. Local Breakout Roaming Architectures
- Trusted vs. Untrusted Non-3GPP Access Roaming
- Interconnection via IPX Providers and Peering Agreements
- Functionality of the IBCF and TrGW in Inter-Provider Links
- Topology Hiding and Interworking Using SBCs
- Diameter Edge Agent (DEA) for Roaming Security
- S6a and S6d Interfaces in Roaming Scenarios
- Subscriber Profile Replication and Caching Strategies
- Billing and Charging for Roaming IMS Services
- Fraud Detection in International Roaming Traffic
- Latency Minimization in Multi-Hop Roaming Paths
- Support for Wi-Fi Calling While Roaming
- VoLTE Roaming Interoperability Testing
- Use of Global Title Translation in Signaling Routing
- Roaming Agreements with MVNOs and Partner Operators
Module 9: High Availability, Redundancy, and Resilience - Designing for 99.999% Uptime in IMS Core
- Active-Standby vs. Active-Active CSCF Deployments
- Database Replication and Split-Brain Scenarios in HSS
- Heartbeat Monitoring and Failover Detection
- State Synchronization Between Redundant Nodes
- Load Balancing Strategies for P-CSCF and I-CSCF
- Use of Virtual IP Addresses and Floating Interfaces
- Clustering Models for Application Servers
- Session Recovery After Core Node Failure
- Disaster Recovery Planning for IMS Data Centers
- Backup and Restore Procedures for HSS Databases
- Geo-Redundant IMS Deployments Across Data Centers
- Split Site Architectures for Business Continuity
- Automated Health Checks and Proactive Alerts
- Testing Failover with Simulated Network Disruptions
Module 10: Integration with 5G and Service-Based Architecture - IMS in 5G Standalone (5G SA) Networks
- N7 and N11 Interfaces Between 5GC and IMS
- Mapping of 5G NAS Signaling to IMS Registration
- Use of Service-Based Interface (SBI) for Control Plane
- Application of HTTP/2 and JSON in 5G Core Integration
- Interworking Between AMF and P-CSCF via N26 Interface
- Emergency Services in 5G with IMS and NEF
- Network Exposure Function (NEF) for IMS API Access
- Edge Computing and IMS Latency Optimization
- Network Slicing and IMS Service Isolation
- Support for Ultra-Reliable Low-Latency Communication (URLLC)
- IMS Integration with AR/VR and Holographic Calls
- 5G Positioning for Emergency IMS Calls
- Session Continuity Between 5G NR and Wi-Fi 6
- Non-Public Networks (NPN) and IMS for Enterprise 5G
Module 11: Troubleshooting, Monitoring, and Operations - Common IMS Registration Failures and Root Causes
- SIP Response Code Analysis (4xx, 5xx, 6xx)
- Debugging Diameter Disconnect Messages
- Log Correlation Across P-CSCF, I-CSCF, and S-CSCF
- Using Trace Tools for End-to-End Session Flow
- Monitoring CPU, Memory, and Session Load on CSCF Nodes
- SNMP and NETCONF for Remote Device Management
- Centralized Log Aggregation Using ELK Stack or Splunk
- Real-Time Dashboard for IMS Network Health
- Automated Alerting for High Failure Rates
- Troubleshooting Media Path: RTP Loops and Silence
- Call Quality Diagnostic Tools (Wireshark, probes)
- User Plane vs. Control Plane Failure Isolation
- Performing Firmware Upgrade Impact Assessments
- Rollback Strategies During Failed Configurations
Module 12: Certification, Career Advancement, and Practical Deployment - Preparing Your IMS Architecture Design Project
- Documenting Design Decisions with Justification
- Mapping Architecture to 3GPP Release Standards
- Aligning Design with Operator Business Requirements
- Presenting Your Architecture to Technical and Executive Stakeholders
- Defending Design Choices in Peer Review
- Integrating Vendor Product Constraints into Planning
- Conducting a Design Walkthrough Simulation
- Final Assessment and Expert Review Criteria
- Earning Your Certificate of Completion from The Art of Service
- How to List Your Certification on LinkedIn and Resumes
- Leveraging This Credential in Salary Negotiations
- Using the Certification to Justify Promotion or Transfer
- Joining the Global IMS Practitioners Network
- Continuing Education Pathways in 6G and Quantum Networking
- Presence Service Architecture in IMS
- SUBSCRIBE and NOTIFY Methods in Presence Systems
- Presence Authorization Policies and Privacy Rules
- Rich Communication Suite (RCS) and Joyn Standards
- Chat, File Transfer, and Group Messaging with IMS
- Video Share and Screen Share Implementations
- Location-Based Services in RCS Frameworks
- Integration of RCS with Messaging Hubs
- Interoperability Between IMS Operators via GSMA IR.92
- RCS Universal Profile and Compliance Requirements
- Handling of Offline Messages and Message Store Access
- Instant Messaging Over IP (IMPI) vs. User-Level IM
- Secure Messaging Using Identity Binding and Encryption
- Message Synchronization Across Devices
- Anti-Spam and Abuse Detection in Messaging Systems
Module 8: IMS Roaming and Interconnection Models - Home-Routed vs. Local Breakout Roaming Architectures
- Trusted vs. Untrusted Non-3GPP Access Roaming
- Interconnection via IPX Providers and Peering Agreements
- Functionality of the IBCF and TrGW in Inter-Provider Links
- Topology Hiding and Interworking Using SBCs
- Diameter Edge Agent (DEA) for Roaming Security
- S6a and S6d Interfaces in Roaming Scenarios
- Subscriber Profile Replication and Caching Strategies
- Billing and Charging for Roaming IMS Services
- Fraud Detection in International Roaming Traffic
- Latency Minimization in Multi-Hop Roaming Paths
- Support for Wi-Fi Calling While Roaming
- VoLTE Roaming Interoperability Testing
- Use of Global Title Translation in Signaling Routing
- Roaming Agreements with MVNOs and Partner Operators
Module 9: High Availability, Redundancy, and Resilience - Designing for 99.999% Uptime in IMS Core
- Active-Standby vs. Active-Active CSCF Deployments
- Database Replication and Split-Brain Scenarios in HSS
- Heartbeat Monitoring and Failover Detection
- State Synchronization Between Redundant Nodes
- Load Balancing Strategies for P-CSCF and I-CSCF
- Use of Virtual IP Addresses and Floating Interfaces
- Clustering Models for Application Servers
- Session Recovery After Core Node Failure
- Disaster Recovery Planning for IMS Data Centers
- Backup and Restore Procedures for HSS Databases
- Geo-Redundant IMS Deployments Across Data Centers
- Split Site Architectures for Business Continuity
- Automated Health Checks and Proactive Alerts
- Testing Failover with Simulated Network Disruptions
Module 10: Integration with 5G and Service-Based Architecture - IMS in 5G Standalone (5G SA) Networks
- N7 and N11 Interfaces Between 5GC and IMS
- Mapping of 5G NAS Signaling to IMS Registration
- Use of Service-Based Interface (SBI) for Control Plane
- Application of HTTP/2 and JSON in 5G Core Integration
- Interworking Between AMF and P-CSCF via N26 Interface
- Emergency Services in 5G with IMS and NEF
- Network Exposure Function (NEF) for IMS API Access
- Edge Computing and IMS Latency Optimization
- Network Slicing and IMS Service Isolation
- Support for Ultra-Reliable Low-Latency Communication (URLLC)
- IMS Integration with AR/VR and Holographic Calls
- 5G Positioning for Emergency IMS Calls
- Session Continuity Between 5G NR and Wi-Fi 6
- Non-Public Networks (NPN) and IMS for Enterprise 5G
Module 11: Troubleshooting, Monitoring, and Operations - Common IMS Registration Failures and Root Causes
- SIP Response Code Analysis (4xx, 5xx, 6xx)
- Debugging Diameter Disconnect Messages
- Log Correlation Across P-CSCF, I-CSCF, and S-CSCF
- Using Trace Tools for End-to-End Session Flow
- Monitoring CPU, Memory, and Session Load on CSCF Nodes
- SNMP and NETCONF for Remote Device Management
- Centralized Log Aggregation Using ELK Stack or Splunk
- Real-Time Dashboard for IMS Network Health
- Automated Alerting for High Failure Rates
- Troubleshooting Media Path: RTP Loops and Silence
- Call Quality Diagnostic Tools (Wireshark, probes)
- User Plane vs. Control Plane Failure Isolation
- Performing Firmware Upgrade Impact Assessments
- Rollback Strategies During Failed Configurations
Module 12: Certification, Career Advancement, and Practical Deployment - Preparing Your IMS Architecture Design Project
- Documenting Design Decisions with Justification
- Mapping Architecture to 3GPP Release Standards
- Aligning Design with Operator Business Requirements
- Presenting Your Architecture to Technical and Executive Stakeholders
- Defending Design Choices in Peer Review
- Integrating Vendor Product Constraints into Planning
- Conducting a Design Walkthrough Simulation
- Final Assessment and Expert Review Criteria
- Earning Your Certificate of Completion from The Art of Service
- How to List Your Certification on LinkedIn and Resumes
- Leveraging This Credential in Salary Negotiations
- Using the Certification to Justify Promotion or Transfer
- Joining the Global IMS Practitioners Network
- Continuing Education Pathways in 6G and Quantum Networking
- Designing for 99.999% Uptime in IMS Core
- Active-Standby vs. Active-Active CSCF Deployments
- Database Replication and Split-Brain Scenarios in HSS
- Heartbeat Monitoring and Failover Detection
- State Synchronization Between Redundant Nodes
- Load Balancing Strategies for P-CSCF and I-CSCF
- Use of Virtual IP Addresses and Floating Interfaces
- Clustering Models for Application Servers
- Session Recovery After Core Node Failure
- Disaster Recovery Planning for IMS Data Centers
- Backup and Restore Procedures for HSS Databases
- Geo-Redundant IMS Deployments Across Data Centers
- Split Site Architectures for Business Continuity
- Automated Health Checks and Proactive Alerts
- Testing Failover with Simulated Network Disruptions
Module 10: Integration with 5G and Service-Based Architecture - IMS in 5G Standalone (5G SA) Networks
- N7 and N11 Interfaces Between 5GC and IMS
- Mapping of 5G NAS Signaling to IMS Registration
- Use of Service-Based Interface (SBI) for Control Plane
- Application of HTTP/2 and JSON in 5G Core Integration
- Interworking Between AMF and P-CSCF via N26 Interface
- Emergency Services in 5G with IMS and NEF
- Network Exposure Function (NEF) for IMS API Access
- Edge Computing and IMS Latency Optimization
- Network Slicing and IMS Service Isolation
- Support for Ultra-Reliable Low-Latency Communication (URLLC)
- IMS Integration with AR/VR and Holographic Calls
- 5G Positioning for Emergency IMS Calls
- Session Continuity Between 5G NR and Wi-Fi 6
- Non-Public Networks (NPN) and IMS for Enterprise 5G
Module 11: Troubleshooting, Monitoring, and Operations - Common IMS Registration Failures and Root Causes
- SIP Response Code Analysis (4xx, 5xx, 6xx)
- Debugging Diameter Disconnect Messages
- Log Correlation Across P-CSCF, I-CSCF, and S-CSCF
- Using Trace Tools for End-to-End Session Flow
- Monitoring CPU, Memory, and Session Load on CSCF Nodes
- SNMP and NETCONF for Remote Device Management
- Centralized Log Aggregation Using ELK Stack or Splunk
- Real-Time Dashboard for IMS Network Health
- Automated Alerting for High Failure Rates
- Troubleshooting Media Path: RTP Loops and Silence
- Call Quality Diagnostic Tools (Wireshark, probes)
- User Plane vs. Control Plane Failure Isolation
- Performing Firmware Upgrade Impact Assessments
- Rollback Strategies During Failed Configurations
Module 12: Certification, Career Advancement, and Practical Deployment - Preparing Your IMS Architecture Design Project
- Documenting Design Decisions with Justification
- Mapping Architecture to 3GPP Release Standards
- Aligning Design with Operator Business Requirements
- Presenting Your Architecture to Technical and Executive Stakeholders
- Defending Design Choices in Peer Review
- Integrating Vendor Product Constraints into Planning
- Conducting a Design Walkthrough Simulation
- Final Assessment and Expert Review Criteria
- Earning Your Certificate of Completion from The Art of Service
- How to List Your Certification on LinkedIn and Resumes
- Leveraging This Credential in Salary Negotiations
- Using the Certification to Justify Promotion or Transfer
- Joining the Global IMS Practitioners Network
- Continuing Education Pathways in 6G and Quantum Networking
- Common IMS Registration Failures and Root Causes
- SIP Response Code Analysis (4xx, 5xx, 6xx)
- Debugging Diameter Disconnect Messages
- Log Correlation Across P-CSCF, I-CSCF, and S-CSCF
- Using Trace Tools for End-to-End Session Flow
- Monitoring CPU, Memory, and Session Load on CSCF Nodes
- SNMP and NETCONF for Remote Device Management
- Centralized Log Aggregation Using ELK Stack or Splunk
- Real-Time Dashboard for IMS Network Health
- Automated Alerting for High Failure Rates
- Troubleshooting Media Path: RTP Loops and Silence
- Call Quality Diagnostic Tools (Wireshark, probes)
- User Plane vs. Control Plane Failure Isolation
- Performing Firmware Upgrade Impact Assessments
- Rollback Strategies During Failed Configurations