Worldwide low price calling rates, independent of which network is used!


  • Call all Destinations for free*
  • No basic fee, contract can be terminated at any time
  • Full cost control with pre-paid credit account. Rate announcement before the call begins
  • To charge the point account is easy & safe, with Paypal, giropay, Sofortüberweisung, credit card, Lastschrift, EPS, Moneybookers or advance payment.
  • Free of charge phonebook use including speed-dial.
  • Make calls abroad without roaming charges - with our callback service
  • Constantly changing discounts for our customers
  • No pin codes or card numbers,easy identification process by access recognition.
  • Free-sms: Send 2 free short messages a day (114 signs, plus bidderad).
  • Free iPhone / Android App
  • Itemised reports, credit top-up and personal data management are all possible at any time from the user account.
  • Free SIP-Account
  • SIP connectivity via Softphone

What is fonworld?

Place cheap international calls worldwide, to all landline and mobile networks - this is fonworld. Save up to 90%! Please use fonworld via SIP, our iPhone App, the Webfon or the regional access number when calling from Germany. Send text messages worldwide for only 7 ct. You will find further information to the fonworld-Service at 'how-to'

Please get an idea of our fair rates at our rates overview:

To use our callthrough service you have to register. The registration ist free of charge, without obligation and you can cancel it at any time.
As a welcome gift we offer you a credit of 1 €*. You can start directly to try the service without any commitment. Discover more about the many benefits of fonworld.

*Taking into account the 1€ initial credit
**The sign-up bonus is only paid once per registered telephone-line/per customer.

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