dpkg: considering removing skype-bin in favour of skype ...
dpkg: no, cannot proceed with removal of skype-bin (--auto-deconfigure will help):
 skype depends on skype-bin
  skype-bin is to be removed.
dpkg: regarding .../skype-ubuntu-precise_4.1.0.20-1_i386.deb containing skype:
 skype conflicts with skype-bin
  skype-bin (version 4.0.0.8-0oneiric1) is present and installed.
dpkg: error processing /tmp/skype-ubuntu-precise_4.1.0.20-1_i386.deb (--install):
 conflicting packages - not installing skype

sudo apt-get update && sudo apt-get install skype

sudo apt-get remove skype
sudo apt-get autoremove