There are number of ways available today to make your international calls cheaper. Following are some of them-
Making VOIP calls Buying calling cards.

VOIP calls:
Making VOIP calls allows the users to make free PC to PC international calls. Skype, MSN messanger, Gtalk, Yahoo, ICQ and there are other providers which help in making the free international calls. Its easy to get this done. There are number of dial through companies like-Telestunt, Telediscount etc. that facilitate making VOIP calls over the phone also. The requirements for this are as follows-
A broadband connection. A normal phone. A phone adapter. Steps involved in the process are simpler than thought- Connection to broadbend modems with the VOIP adapter Connection to analog phone to adapter of phone jacks Adapter to power circuit connections

Advantage of this Voice Over Internet Protocol(VOIP)
A good amount is saved on calling and that too without any registration, credit cards or pre-payment.

Buying calling cards-
There are number of calling cards available in the market which help making these international calls at cheaper rate. These cards can be purchased from any location of the world with Internet access.

There are two types of calling cards- prepaid cards and postpaid cards.
Prepaid cards give you the flexibility of the spendings and recharge of the credits while in post paid cards there is obligation to pay at specified time irrespective of the use. However there is no worry of credits get depleted in case of postpaid calling cards and hence is not less popular.

Thus cheap international calls have freed the people from hefty international bills and have made them enjoy the roaming doubly.