Gemeinschaft is a PBX based on Asterisk, MySQL, Apache, and PHP, and designed for high availability and clustering. It provides automatic provisioning for mass deployment, and can handle over 10,000 users. Administration is done via shell scripts or a Web GUI. Hot-desking and mobility are supported. German voice prompts are included. There is a standards-compliant Web GUI with internationalization (and German and English translations). Outbound and inbound routing with full PCRE support is included.
SpamWars is an efficient antispam protection system that claims never to lose bona fide mail, thanks to a verification method of the relationship between you and your email contacts. This challenge-response technique not only works for traditional email messages but also for automated replies, newsletters, or lists to which you wish to remain available.
The lxi-control application is a command line utility for remote controlling LXI enabled devices. Typical devices include instruments such as power supplies, oscilloscopes, digital multimeters, signal generators, etc. The devices are controlled by sending SCPI commands via a LAN IP network to the devices. LXI is the successor to GPIB.
CGI::ContactForm is a Perl module that generates a contact form for the Web and sends a message to a predestinated recipient. Unlike many form-to-mail programs, it's limited to this single purpose, but it allows you to set up a decently designed form with a minimum of effort. In other words, it's simple to use rather than flexible, even if there are quite a few customization possibilities.