Helpdesk

Bugzilla is a bug tracking / help desk software. It allows individual or groups of developers to keep track of outstanding bugs in their product effectively. It can easily be used as a full help desk system.

Bugzilla has matured immensely, and now boasts many advanced features. These include:

- integrated, product-based granular security schema
- inter-bug dependencies and dependency graphing
- advanced reporting capabilities
- a robust, stable RDBMS back-end
- extensive configurability
- a very well-understood and well-thought-out natural bug resolution protocol
- email, XML, console, and HTTP APIs
- available integration with automated software configuration management systems, including Perforce and CVS (through the Bugzilla email interface and checkin/checkout scripts)

RT is an enterprise-grade ticketing /helpdesk software which enables a group of people to intelligently and efficiently manage tasks, issues, and requests submitted by a community of users. It is widelyt used used as an helpdesk system.

RT manages key tasks such as the identification, prioritization, assignment, resolution and notification required by enterprise-critical applications including project management, help desk, NOC ticketing, CRM and software development.

RT is used by Fortune 100 companies, government agencies, educational institutions, and development organizations worldwide.

osTicket is a widely-used open source support ticket system. It seamlessly integrates inquiries created via email and web-based forms into a simple easy to use multi-user web interface. Easily manage, organize and archive all your support requests and responses in one place while providing your clients with accountability and responsiveness they deserve.
osTicket is an attractive alternative to higher-cost and complex customer support systems; simple, lightweight, reliable, open source, and easy to setup and use. The best part is, it's completely free.

Liberum Help Desk is the complete help desk solution for small to medium sized businesses and organizations. This software provides a simple, easy to use web interface for managing and tracking technical support problems.

Liberum Help Desk is open sourced under the GPL license and free for use. The help desk software is written in HTML and ASP and is easily modified and customized. All that is required to run Liberum Help Desk is Windows Server 2000/XP or later running IIS.