jabber.el is a Jabber client running under Emacs. For more information on the open-protocol instant messaging network Jabber, please visit http://www.jabber.org.
As a Jabber client, jabber.el is mostly just a face in the crowd, except that it uses buffers where GUI clients have windows. There is a roster buffer, and to chat with someone you open a chat buffer, and there are buffers for interaction with servers and services. Then again, jabber.el delivers excellent console performance and customizable hooks (if you have speech synthesizer software, hook it up to your presence alerts).
jabber.el does not yet support PGP encryption, sending and receiving roster items, and various other things.