Global Roaming Tariff Market Size, Impact of 5G and eSIM Adoption Analysis Report By Service Type (Voice Roaming, Data Roaming, SMS Roaming), By Roaming Type (International Roaming, Domestic Roaming), By Business Model (Retail Roaming, Wholesale Roaming), Region and Companies – Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2025-2034