Akeni Instant Messaging Server Pro is a client/server instant messaging platform that allows companies to host their own secured private IM system. The client has an user interface similar to AIM, ICQ, or MSN Messenger. It supports all the standard IM features such as chat, group conference, presence management, file transfer, offline messages, and emergency alert/notification. Extra features include contact management and optional tabbed chat sessions. The server has advanced administration tools for managing user accounts, client-side logging capabilities, and peer-to-peer file transfers. It can be set up on a private network without connecting to the Internet, and can easily be set up for use inside and outside of the company firewall.
Effusia Business Messenger is a cross-platform, centrally managed, internal instant messaging and presence communication tool for small to medium enterprises. The system comprises a client, a server, and an integrated Web based administration tool. Effusia focuses on providing real-time business communication combined with simple deployment, easy administration, and a friendly end-user experience.
The Off-the-Record (OTR) Messaging proxy is a multi- platform proxy that allows you to have private conversations using the AIM client of your choice. It provides encryption, which prevents someone who intercepts your instant messages from reading them, authentication, which ensures that the correspondent is who you think it is, and perfect forward secrecy, which ensures that no previous conversation is compromised if you lose control of your private keys.
WASTE is a mesh-based workgroup tool that allows for encrypted, private communication between distant parties on the Internet, independent of local network organization. It is RSA secured, and has been heralded as the most secure P2P connection protocol currently in development. WASTE functions as a both a server and a client under *nix, Mac OS X, and Windows, as well as a server only mode under *nix and Windows.
Whisper IM is a secure IM client that provides end-to-end encryption over a XMPP/Jabber network. The encryption system (The Whisper Protocol) is designed for instant messaging, and is IM protocol and platform neutral. It supports all standard instant messaging features, such as messages, one to one chat, and online presence. The user interface is clean and easy to use. It also features multi-user chat (JEP45), context sensitive help, a service discovery tool (JEP30), and internationalization support.