When choosing a tariff, it is important to compare various providers. The charges can vary greatly from one another, depending on which countries you want to phone. You should expect a charge of 15 cents per call in addition to the per-minute charge. Longer phone calls are therefore proportionally cheaper. As a rule, prices per minute of more than 25 cents are considered expensive.
Well-known providers for overseas tariffs include Lebara (Bosnia and Herzegovina, Eritrea, Iraq, Nigeria, Pakistan), Lycamobile (Eritrea, Jordan, Lebanon, Nigeria, Pakistan, Syria, Turkey), Mobilka (Russia, Urkraine, Kazakhstan), NettoKom (Iraq), Ortel Mobile (Afghanistan, Iraq) Simquadrat (Syria) and Vodafone (Iran, Turkey). You can find detailed information online directly with the providers. All companies also offer additional data options with which you can surf the web on your phone. Compare prices here, too!