Free phonecalls abroad with Free

In the all-out war of the French Internet Service Providers, Free has launched a massive assault. Besides a general lowering of their international rates, phonecalls made from the freebox (their adsl modem/set-top-box) to the following countries will be, well, free, and unlimited from January 1st onwards,:
Australia, Austria, Canada, China, Germany, Ireland, Israel, Italy, Netherlands, Portugal, Singapore, Spain, United Kingdom and USA. Calls made to mobile phones in the US or in Canada will also be concerned.