in case of prefix withdrawal, dial-out

[Eric Brunner-Williams]

It is my son's turn to have the laptop so I won't bother to translate. 
The non-francophones can use Google's auto-xlate bot.
http://www.lemonde.fr/technologies/article/2011/01/28/pour-contourner-le-blocage-du-web-les-modems-56k_1471819_651865.html