
VoipSwitch
VoipSwitch is a SoftSwitch System with routing and billing, with SIP protocol support (in older versions also H323). Basic package includes softswitch app, IVR app...
FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open source communication server.
freepbx is a webbased open source gui (graphical user interface) that controls and manages asterisk (pbx), an open source communication server. freepbx is licensed under the gnu general public license (gpl), an open source license. freepbx can be installed manually or as part of the preconfigured freepbx distro that includes the system os, asterisk, freepbx gui and assorted dependencies.
with over 1 million production systems worldwide and 20,000 new systems installed monthly, the freepbx community continues to outperform the industry's commercial efforts. the freepbx ecosystem has developed over the past decade to be the most widely deployed open source pbx platform in use across the world. the openness of the project allows users, resellers, enthusiasts and partners to utilize the freepbx ecosystem to build robust communications solutions that are powerful but at the same time easy to implement and support. sangoma is proud to be the sponsor of freepbx project. if you are new to freepbx you can get started quickly by downloading and installing the freepbx distro. the freepbx distro is an all in one platform that installs everything you need to build a phone system. once you have a basic pbx in place you can add commercial modules to add advanced features to an already feature rich base install of freepbx.