Kiax is a softphone (soft phone, VoIP client) with a simple and comfortable user interface for making VoIP calls to Asterisk PBX. It depends on the iaxclient library to use Asterisk's IAX2 protocol for easy call configuration and audio setup.
Miruna Asterisk System is a PBX/Asterisk GNU/Linux distribution for Soekris HW. It's simple to set up your Voip infrastructure with FreePBX GUI and a lot of profit software! Now is suitable only for Soekris 48xx, next version include support for 55xx
CSTAtest is a simple test program to test the CSTA (Computer Supported Telecommunications Aplication) protocol and services on your PBX. It has been only tested on a Matra Nortel 6540 but should work on all CSTA phase II compliant PBX.