Introduction to Roaming

Name: Introduction to Roaming
Start: 2026-09-22T10:00:00+02:00
End: 2026-09-23T15:00:00+02:00

Course Overview

This course gives an introduction to the International Roaming Industry. It describes the steps to establish a roaming relationship with a roaming partner, from signing the roaming agreement to the testing process and the Commercial Launch Letter (CLL). The second day we will discuss the commercials of roaming: the retail and wholesale concepts and how to negotiate good wholesale prices. Because most operators are currently establishing VoLTE Roaming relationships, we will discuss this launch process together with its challenges. Lastly, we will show the various roaming fraud options and ways to minimize chances on roaming fraud. A perfect all-round course for people who are new in the roaming business or want to re-fresh their knowledge.

The course will be delivered over Microsoft Teams.

Key Learning Objectives

Upon completion of this training, participants will be able to:

Explain the fundamentals and key terminology of international roaming
Describe roaming network architecture and launch processes (Roaming Agreement, IREG, TADIG, CLL)
Understand wholesale and retail pricing, margins, and regulatory impacts
Recognize the roles of GSMA, Clearing Houses, and Roaming Hubs
Explain VoLTE roaming concepts and associated challenges
Identify roaming fraud risks and apply prevention methods such as NRTRDE and OCS/CAMEL

Our Industry Experts

The course will be delivered by the following industry experts:

Milja Hofman, Roaming Specialist and Owner, Roamingwise

Who Should Attend This Course?

This course is well suited for people who recently joined the roaming department as a Roaming Manager or Roaming Coordinator and for people who are linked to roaming in their current job (Finance, Fraud, IREG, TADIG). MVNOs and IoT providers with an interest in establishing roaming relationships can also benefit from this course.

Course Dates and Times

Date: 22 – 23 September 2026

Time: 10:00 – 15:00 Central European Time (CET)

Location: Online on MS Teams

Course Fee

The course fee is US$1,999.

For group registrations, contact our Partnerships Director Helen Robinson: hrobinson@gsma.com

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Duration: 2 days

Start date: 22-23 September 2026

$1,999.00 Per Participant

Expert

Milja Hofman

Roaming Specialist and Owner, Roamingwise

Having twenty-three years of international roaming experience, Milja Hofman started her career with Telfort in The Netherlands as TADIG Tester and Product Manager International Roaming. After spending six years at the Data and Financial Clearing House MACH (now TOMIA) in Luxembourg, Milja started her own company Roamingwise in which she combines her enthusiasm for roaming, and training and consultancy. Her experience makes that Milja has a broad roaming knowledge which she uses in her current trainings and consultancy assignments.

Milja closely follows the GSMA working groups and teaches the GSMA standards. With Roamingwise Milja has supported many satisfied customers in the past thirteen years.