I think iCAR is not the real iChat AV auto responder.
It is only for changing the status message of iChat.
I made real “iChat AV Auto Responder” and it is working every day to check iChat AV video chat is available or not in each environment.
You can contact “tsunagaru@mac.com” by video chat.
And the iChat AV Auto responder answers your call for 30 seconds.
It accepts video chat and returns text chat message ( in Japanese). I made “iChat AV Auto responder” in August 2003.
But I don’t distribute it.