In addition to cellular carriers waiving fees for international calls, Skype has announced that it will be making calls to landlines and mobile phones in France free for a few days. This move follows attacks that took place in Paris on Friday night.

From Skype:

In light of the devastating events that have taken place in Paris, we want to help people stay in touch with friends, family and colleagues. So, with immediate effect we are making all domestic and international calls to landlines and mobiles in France free of charge* for the next few days.

This offer is not extended to calls made to premium services or to non-French phone numbers inside France.

Source: Skype