The HylaFAX Protocol for Java project (gnu-hylafax) is a pure Java implementation of the HylaFAX Fax Server Client Protocol. The gnu.hylafax package can be used to implement a HylaFAX client that will run on any Java-supporting system.
JHylaFAX is a platform independent client for HylaFAX that runs on any Java 6.0 enabled platform. It is capable of sending faxes, displaying server status and received faxes. It has a small footprint, starts up fast and features a sleek user interface.
OpenSubsystems is set of business components such as security, search, inventory management, able to run on various J2EE servers or just using JVM thanks to unique middleware abstraction layer and repository of common application functionality patterns
This app is a clone of kisdnmon (kisdnmon.sourceforge.net) which will be mainly designed to run under Windows (but under Linux as well). Alongside JIsdnMon there is a server written in java called JIsdnCallServer.