There seems to be a way to give proxy settings with username and password authentication in Kadu, but I'm not sure how to use it. There are 2 places where proxy connections are mentioned, one in Preferences-> Kadu -> Advanced and other in Your accounts -> Connections. Which one of these should be used?
A bit off-topic, but are there any IM clients for gtalk allowing audio calls? (Pidgin doesn't on my system, so trying to use Kadu. Failed to configure proxy authentication in Empathy & Kopete).
I'm using Ubuntu 12.04 LTS (Unity).