jSipgateConnect library allows Java-based access to all functions specified in the 'Sip Advanced Messaging, Usability, Routing and Accounting Interface' specification.
GUI Fax Manager for Linux MGetty+SendFax. Faxes are routed to auto print and/or auto e-mail incoming. Faxes can also be sent from workstations. Access previous faxes via web page interface. Please see the documentation at http://fax2serve.sourceforge.net