what's the cheapest pre-paid calling card to Europe?

[NsXMas]

A German colleague is here visiting for a few weeks, and needs to find a cheap pre-paid calling card to call home.

Thanks for any help.

 

[Cruzrmm]

I have been calling Western and Eastern Europe for the last 6 - 7 years.
I use Nobelcom.com or Prepaid.com (Same company, different options)
Customer Service tel# 1 800 520-9215 or 1 800 326-6235
5 cents to 7.5 cent per minute
http://www.enjoyprepaid.com/
Works for most any country. Hard to beat the rates per minute.
Quality connections and good customer service.
I am not affiliated with this service, just a satisified customer.
My wife talks to her European family and friends regularly using this account.

Good luck!