Can't hang up voice with user
There is no possibility to hang up the call if user has no voice capability. I mean if gajim thinks that user has no voice support but this user calls to it and call negotiated I will not be able to hang up the call because the button is inactive.
Steps to reproduce
Call from jid with, for example, subscription "from" then we can't know user's capabilities
Accept the call
Can't hang up from gajim
OS version: Gentoo GTK version: