From Interactive Networks:
Instan-t is a fully-featured, easy to use and secure instant messaging product suitable for enterprises. It ensures the authenticity of network users and keeps all information transmitted through the IM secure and confidential. It uses instant messaging for strict business productivity. With this one can easily manage your IM network through a web based administration console. Let employees be constantly connected through a PC or web-based instant messenger, as well as through their own mobile devices. Prevent users from running public IMs and control who is allowed to communicate with the public IM networks (MSN, AOL, ICQ, Yahoo and Google Talk) through Instan-t. Use Instan-t's built-in user registration or integrate it with your Active Directory to use the same usernames and passwords you already have. Keep a centralized message archive of all your communications. Communicate face to face with other users through multi-person video chat with voice and video.