Acknowledgements 1 Introduction 2 Methodology 3 Building blocks for international mobile roaming strategic guidelines 3.1 Guidelines for national regulatory authorities 3.1.1 Bilateral, multilateral and regional initiatives 3.1.2 National markets 3.2 Guidelines for mobile network operators and service providers Annex 1: Key IMR regulatory issues A1.1 Looking to the future: Internet-of-things (IoT) and machine-to-machine (M2M): A challenge to IMR or an opportunity for all? A1.2 Price regulation A1.3 Taxation A1.4 IMR market competition A1.5 Consumer protection Annex 2: Overview of existing regional and international association IMR initiatives A2.1 ITU activities on roaming A2.2 Regional and multi-country initiatives A2.3 Operator and service provider initiatives Annex 3: List of regional regulatory associations, international organizations, consumer associations and private sector associations - participating at the Let’s Roam the World initiative Annex 4: Glossary of terms Figure 1: IMR stakeholder building blocks Figure 2: Let’s Roam the World strategy Figure 3: Building blocks for IMR strategic guidelines Figure A1.1: Number of countries that regulate IMR prices by region Figure A1.2: Regulatory practice by number of countries in each region for IMR retail prices Figure A2.1: Data collection by NRAs on retail and wholesale roaming rates by region, 2017 Figure A2.2: The EU maximum tariffs (excluding VAT) for calls, texts and downloading data Figure A2.3: Provisions and deadlines of the new roaming regulation Figure A2.4: Results from the wholesale market review Figure A2.5: Wholesale and Retail Roaming Tariff reduction – Glide Path Figure A2.6: Voice calls made and received by Kenyans roaming in ONA states and ONA citizens roaming in Kenya Box 1: EU roaming charges Box 2: Intention of the BEREC Guidelines Box 3: ARCTEL plan of action Box 4: SADC home and away roaming: Wholesale and retail roaming regulation Box 5: Lessons to be learned from the ONA experience Box 6: Intention of ECOWAS Box 7: Arab Regulators Network IMR challenges Box 8: GCC International Roaming Regulatory Initiative Box 9: The Caribbean Telecommunication Union Box 10: Eastern Caribbean Telecommunications Authority Box 11: Comisión Técnica Regional de Telecomunicaciones Box 12: Concrete outcomes of the Central America Without Border initiative Box 13: ASIET presentation at the IMR Consultation Meeting, Geneva 2016