VOIP Services Market Size and Forecasts (2020 - 2030), Global and Regional Share, Trends, and Growth Opportunity Analysis Report Coverage: By Call Type (International VoIP, Domestic VoIP); Service Type (SIP Trunking, Hosted IP PBX, Managed IP PBX); End-User (IT and Telecom, BFSI, Government, Healthcare, Retail) , and Geography (North America, Europe, Asia Pacific, and South and Central America)