FYI http://dijon.nais.com/~nevo/masq/ [ note of LTT maintainer : this site is dead, the correct url is now http://www.tsmservices.com/masq/ ] The site above lists all the applications that have proven to work with ipmasq. Details have been gaven on how to make these apps work. ICQ is in "Chat Program" section. It seems that ipautofw is heavily used. What a sweet thing! I used to spend a lot of time trying to figure out how to make voxphone work. If I've ever found this site earlier, I'd have saved a lot of time for myself. Enjoy!