Kopete – multi-protocol Chat server
Kopete is a flexible and extendable multiple protocol instant messaging system designed as a plugin-based instant messaging system suitable for personal and enterprise use. it’s an instant messaging system supporting AIM, ICQ, Windows Live Messenger, Yahoo, Jabber, Gadu-Gadu, Novell GroupWise Messenger, and more.
It use all protocol as plugins and allow modular installation, configuration, and usage without the main application knowing anything about the plugin being loaded. Kopete main aims to provide users with a single easy-to-use way to access all of their instant messaging systems. The interface puts people first, and is integrated with the system address book to let you access your contacts from other KDE applications.
The application has compact and light User Interface and provide some useful features such as message encryption, archiving, and many other fun and useful effects. it supports all commonly used instant messaging protocols, and API provide so many useful features to make it easy to support a new protocol. All protocols are plugins and allow for modular installation, configuration, and usage.