I’ve looked into just about every business phone system on the market. Along the way, I uncovered the best SIP trunk providers based on pricing, setup, customer service, features and integrations. Each one of these providers can help you keep using your old equipment while move communications to the cloud and reduce reliance on outdated infrastructure 1 CloudTalk Employees per Company Size Micro (0-49), Small (50-249), Medium (250-999), Large (1,000-4,999), Enterprise (5,000+) Any Company Size Any Company Size Features 24/7 Customer Support, Call Management/Monitoring, Contact Center, and more Top SIP trunking providers comparison SIP trunking providers connect a business’s on-premises PBX system to the internet rather than traditional phone lines. By bridging the gap between the technology designed for the PSTN (Public Switched Telephone Network) and modern digital communications like VoIP (Voice over Internet Protocol), SIP trunking facilitates cost-effective, scalable communication. This allows businesses to keep using legacy equipment while they gradually transition to the cloud. The major differences between SIP trunking providers often come down to cost structures, compatibility with existing systems, and overall …