VoipSwitch is described as 'SoftSwitch System with routing and billing, with SIP protocol support (in older versions also H323)' and is an app in the Social & Communications category. There are more than 10 alternatives to VoipSwitch for a variety of platforms, including Linux, Windows, Mac, Android and iPhone. The best alternative is Asterisk, which is both free and Open Source. Other great apps like VoipSwitch are 3CX Phone System (Freemium), FreePBX (Free, Open Source), FreeSWITCH (Free, Open Source) and Kamailio (Free, Open Source).
FreePBX is a web-based 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.
FreeSWITCH is a scalable open source cross-platform telephony platform designed to route and interconnect popular communication protocols using audio, video, text or any other form of media. It was created in 2006 to fill the void left by proprietary commercial solutions.
You will be able to setup your own VOIP system in ONE HOUR. miniSIPServer can run on Windows, Linux and even Raspberry Pi. We can also run it on kinds of virtual machine systems, such as Hyper-V, VMWare, KVM, Xen.
More than a PBX, with Elastix you can communicate with your customers through voice, video and live chat from anywhere. Built-in video conferencing, website live chat and smartphone apps, ensure your agents remain productive through one unified mobile solution.