Asterisk vs. VirtualPBX

Build Voice, Video and Text Applications Easily With Asterisk, The World's Most Widely Adopted Open Source Communications Software Development Framework. Asterisk is an open source framework for developing state-of-the-art communications applications. Asterisk includes hundreds of pre-built components that handle the complex, low-level details of voice, video, and text communications. Developers use Asterisk to create custom communications solutions and to build innovative communications products. Discover how Asterisk can power your next-generation communications deployment.

We built the very first cloud phone system back in 1997. Today, we’re still keeping it simple for small businesses: fast, reliable calling, no contracts, and no hidden fees. Get every single feature on one smarter plan. Stay connected to your team and customers from anywhere. Need an extra set of hands? Smart AI tools answer calls and handle routine tasks so you can do more with less. And our real, US-based support is always here to help.