Appendix D. ICQ Handbook

This documentation was converted from the KDE UserBase Kopete/ICQ page.

Revision KDE
SC 4.6 (2011-01-06)

About ICQ

This tutorial will help you to use ICQ, a common chat protocol in Kopete.

ICQ is a proprietary instant messaging program, first developed by the Israeli company Mirabilis. It uses AOL's OSCAR network protocol for sending the text messages. To identify people, it uses a number, called UIN (Unified Identification Number). If you register an ICQ account, you also have to enter an e-mail address. Some ICQ clients support login with that e-mail address instead of your UIN (but not Kopete).


  • Offline messages

  • multi user chat

  • file transfer

Features not yet supported by Kopete

  • games

  • sending SMS


  • Privacy: according to the security analyst Jeffrey Carr, the russian secret service could gain access to chat protocols. For further information see here

  • Spam: there is a lot of spam (unwanted advertisement or viruses) in the ICQ network

  • Copyright: according to the ICQ Acceptable Use Policy, you allow ICQ to use posted material in any manner they want