Install Skype In Kali 4.0.0-kali1-amd64

dpkg --add-architecture i386

apt-get update

apt-get install libpulse0:i386

wget -O skype-install.deb http://www.skype.com/go/getskype-linux-deb

dpkg -i skype-install.deb

apt-get install -f

Done,