Centericq is a text mode menu- and window-driven IM interface that supports the ICQ, Yahoo, AIM, MSN, IRC, and Jabber protocols. It allows you to send, receive, and forward messages, URLs, SMSes (both through the ICQ server and email gateways supported by Mirabilis), contacts, and email express messages, and it has many other useful features. Known to work in Linux, FreeBSD, NetBSD, OpenBSD, Sun Solaris, Windows and MacOS X/Darwin Operating Systems.
Centericq was written and is being developed continuously by Konstantin Klyagin, an author of many other pieces of free software. The software is licensed under the terms of the GNU General Public License.