ipbx
Protect your business and PBX's against VoIP Fraud. Minimize the risks of attacks on your Telephony Server. Save bandwidth by using Geolocation filtering.
VoIPBL is a distributed VoIP blacklist that is aimed to protects against VoIP Fraud and minimizing abuse for network that have publicly accessible PBX's.
Open Minded Telecom System.
XiVO is an IP-PBX, a system that connects phones inside an organization with public and mobile telephone networks. An IP-PBX is a PBX that provides audio, video, and instant messaging services through the TCP/IP protocol.
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. FreeSWITCH also provides a stable telephony platform on which many applications can be developed using a wide range of free tools.
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation that runs on any commodity hardware. From a Raspberry PI to a multi-core server, FreeSWITCH can unlock the telecommunications potential of any device.
AstLinux is a "Network Appliance for Communications" open-source x86_64 Linux software distribution. Unified communications including voice, presence and messaging. Network routing, stateful filtering firewall and VPN support. AstLinux's framework allows integrators and developers to deploy solutions that may be remotely monitored, supported and upgraded using an optimized 60 MB compressed image.