YSM is a portable open source console ICQ client written in the C
language, under the GPL license.  These are the list of available
features the last release of ysm provides:

* Plaintext and AES encrypted ICQ messages sending/receiving.
* Plaintext and AES encrypted File transfers.
* Downloading and Uploading of serverside contact lists.
* Fingerprinting of remote ICQ clients.
* Sending/Receiving of URLs and contacts.
* Ignore, Visible and Invisible lists management.
* and more features..  alert, forwarding, seen, afk, etc..