Calling the US from France with a Lidl SIM would cost € 1.29/min while data would be charged with € 0.83/MB - given theses rates a French SIM would quickly pay off, I think.
There are two interesting options for American travellers who need to call home from France:
- Mobiho : Votre Mobile moins cher ! - calls to the US for € 0.18/min, SIM cards cost € 10 and appear to be widely available in local shops
- Call In Europe - calls to the US costs € 0.44/min, SIM card costs ~ € 10 (€ 7.95 + a monthly fee of € 1.67), delivery to the US