Telefocal Certified International Roaming Professional (TC-IRP)
Course Overview
International roaming remains one of the most critical services for mobile operators, enabling subscribers to seamlessly access voice, messaging, and data services while travelling across networks worldwide. As the industry transitions from legacy networks to LTE and 5G, roaming architectures, signaling protocols, security mechanisms, testing requirements, and commercial frameworks continue to evolve. Roaming professionals must therefore understand not only the operational aspects of international roaming, but also the technologies and standards that support next-generation roaming services.
The Telefocal Certified International Roaming Professional (TC-IRP) program provides participants with a comprehensive understanding of modern roaming networks, covering LTE and 5G roaming architectures, signaling, security, testing, billing, fraud management, and operational best practices. Through practical case studies and real-world roaming scenarios, participants will gain insights into how operators establish, manage, troubleshoot, and optimize roaming services, while preparing for emerging developments such as VoNR, network slicing, IoT roaming, and 5G Standalone roaming.
Target Audience
- Telecom professionals, network engineers, roaming managers, and service providers involved in the design, management, and optimization of LTE roaming services
- Professionals in billing, fraud management, regulatory compliance, and mobile security who want to deepen their understanding of international roaming operations
Duration & Training Format
Instructor-led Training
- Classroom: 5 days
- LIVE Virtual: 35 hours
*Note:
- A minimum of 8 or more participants is required for a Classroom session to commence.
- A minimum of 6 or more participants is required for a LIVE Virtual session to commence.
- LIVE Virtual courses can be conducted for 5 hours or 7 hours daily. Please note that the number of training days will be extended if you opt for 5 hours daily.
Upcoming Course Dates
27 – 31 Jul 2026 (Mon – Fri), GMT +8
If you are keen on attending this course, please register your interest and indicate your preferred training dates via our course enquiry form.
Course Objectives
At the end of this course, participants will be able to:
- Understand the evolution of international roaming from legacy mobile networks to LTE and 5G environments
- Explain the key architectures, network elements, interfaces, and protocols involved in LTE and 5G roaming
- Understand the signaling technologies used in roaming environments
- Identify roaming security challenges and explain mechanisms used to secure LTE and 5G roaming services
- Understand the processes involved in establishing roaming agreements
- Design scalable LTE and 5G roaming services
- Implement best practices for LTE and 5G roaming between international networks
- Configure real network examples for practical application
Course Outline
- Overview of Mobile Networks
- Introduction to GSM, 3G, 4G, and 5G Networks: Key components, architecture, and interfaces
- Comparative analysis of different network generations and their evolution
- Understanding the role of IMS (IP Multimedia Subsystem) Networks in modern roaming, including their functions and impact on network services
- Introduction to 5G Core
- Evolution from EPC-based roaming to 5G Core roaming
- 4G/5G interworking
- Mobile Numbering Plans and Service Management
- Examination of mobile service management across different network generations
- Analysis of trends and challenges in modern service management
- 5G subscriber identifiers (SUPI, SUCI, GPSI) and their role in roaming
- Mobile Security Management
- Review of security measures across GSM, 3G, 4G, and 5G networks
- Exploration of roaming security challenges and innovative solutions
- Consideration of the importance of data protection and privacy in roaming
- Introduction to Roaming Networks
- In-depth overview of inbound and outbound roaming across different network generations
- Analysis of modern roaming architectures and technologies
- Understanding LTE roaming architecture: core network elements, interfaces, and protocols involved in facilitating seamless roaming for subscribers across different networks
- Understanding 5G roaming architecture: Home Routed (HR) and Local Breakout (LBO) models
- Role of N32 interface and SEPP in 5G roaming
- Roaming Service Analysis
- Examination of inbound and outbound roaming scenarios
- Case studies of roaming service issues and troubleshooting techniques
- LTE roaming call flows
- 5G roaming call flows
- Signaling in Roaming
- Interworking with SS7
- Transitioning from traditional signaling to modern protocols such as Diameter and SIP
- Case studies focusing on different signaling methods and their analysis
- HTTP/2 and Service-Based Interfaces (SBI) in 5G roaming
- N32 signaling procedures
- Roaming in Modern Networks
- Understanding LTE and 5G roaming
- SIP signaling and call flows in modern roaming environments
- Case studies highlighting LTE and 5G roaming scenarios and their challenges
- Quality of Service (QoS) management: Techniques for prioritizing traffic, managing bandwidth, and enforcing QoS policies in LTE roaming to ensure optimal performance and user experience
- Network Slice roaming concepts and implementation models
- Standalone (SA) vs Non-Standalone (NSA) roaming
- Roaming Agreements and Testing
- Establishing international roaming: commercial, technical, and testing aspects
- Examination of essential documentation such as AA.12, AA.13, AA.14, IR.21
- IREG and TADIG testing processes and associated documentation
- Roaming agreements and interconnection protocols: Exploring industry standards such as Diameter, GTP, and S6a/S6d for efficient roaming service delivery
- Billing and Fraud Management
- Convergence billing strategies for postpaid and prepaid roaming
- Analysis of CDR flows, TAP creation, and data usage in roaming scenarios
- Advanced techniques for managing fraud and resolving roaming disputes
- Advanced Roaming Topics
- Exploring VoLTE and VoNR (Voice over New Radio) in the context of roaming
- Impact of IoT (Internet of Things) and M2M (Machine-to-Machine) technologies on roaming networks
- Troubleshooting and optimization: Tools, methodologies, and best practices for maintaining high service availability and reliability in LTE roaming
- Scalability and Redundancy Strategies
- Techniques for designing scalable and redundant LTE roaming architectures
- Load balancing, traffic management, and failover mechanisms to enhance network resilience
- Scaling 5G roaming platforms and cloud-native roaming functions
- Regulatory Compliance and Policy Frameworks
- Regulatory requirements, compliance standards, and policy frameworks governing LTE roaming
- Understanding legal and regulatory considerations impacting roaming agreements, pricing models, and data privacy
- Regulatory considerations for 5G roaming and cross-border data exchange
- Future Trends in Roaming
- Investigation of emerging trends in international roaming, including new technologies and standards
- Exploring potential use cases for 5G in roaming, focusing on innovation and enhanced user experience
- Roaming with NTN
- VoWiFi roaming
Certification: At the end of the course, participants will sit through a written examination. A professional certificate will only be issued upon:
- Scoring 60% or higher in the written exam AND
- Achieving at least 75% attendance for the course.
Pre-requisites
- Basic understanding of mobile network concepts and architectures
- At least 1-2 years of experience in mobile network operations, engineering, planning, optimization, service delivery, or related roles (recommended but not mandatory)
Testimonials
"The trainer was great! Knowledgeable, prepared, flexible, always eager to answer my extra questions. Thanks to his teaching I manged to pass the exam with flying colours! I am now more prepared for the development of our network to NR."
Polkomtel (PLUS)
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