3CX Phone System is a specialist Linux distribution designed for VoIP telephony. The project's latest "netinst" image includes a standard Debian installer which automatically installs the Linux edition of the 3CX VoIP software. A release candidate is now available for testing: "Service Pack 4 is here in time for the holidays and it's packed with new features and improvements. The V15 Linux edition is now a release candidate. We added a DECT / FXS provisioning feature that allows you to easily provision a DECT-base station and assign handsets to individual extensions. Furthermore, a new reporting module and many fixes to the reports. We have also closed the feature gap between Linux and Windows further by introducing fax, failover and the directory service to the Linux edition. You can apply these updates from the updates page in the management console." See the release announcement for more details and a list of new features. Interested testers can download the installation CD image from here: debian-8.6.0-amd64-netinst-3cx.iso (265MB, pkglist).
3CX Phone System is a specialist, Debian-based Linux distribution designed to run a complete unified communications platform. The 3CX client, included in the distribution, can also be installed separately on most hardware as well as the cloud. It provides a complete open standards-based IP PBX and phone system that works with popular SIP trunks and IP phones. It will automatically configure all supported peripherals and it also comes with clients for Windows, OS X, iOS and Android. The ISO image includes a free license for the 3CX PBX edition. The ISO image contains the standard Debian installer which installs a minimal system with the nginx web server, PostgreSQL database, iptables firewall and Secure Shell. Options not relevant to 3CX have been removed from the distribution. Download the installation ISO image from here: debian-9.2.1-amd64-netinst-3cx.iso (324MB).