Global Telecom Managed Service Market Size, Share, Growth Analysis Report By Service Type (Managed Network Services, Managed Data Center Services, Managed Security Services, Managed Mobility Services, Other Service Types), By Deployment Mode (Cloud-Based, On-Premise), By Enterprise Size (Small and Medium Sized Enterprises, Large Enterprises), Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2024-2033