Global Cloud Telephony Service Market By Deployment (Hosted, Cloud), By Enterprise Size (Small & Medium Enterprise (SMEs), Large Enterprises), By Network (Public Switched Telephone Networks (PSTNs), Voice over Internet Protocol (VoIP)), By Application (Conferencing, Multi-level IVR, Sales & Marketing, Customer Relationship Management (CRM)), By Industrial Vertical (BFSI, Education, Government, Healthcare, Media & Entertainment, Retail, Telecom & IT, Other Industry Verticals), Region and Companies – Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2024-2033