[bbob]

What he means is that he has a local cell phone and would like to make cheap international calls.

Using a standard callback solution does not works because he gets charged for incoming international calls.

When the incoming international call shows a local number he does not get charged.
Normal callback solutions don't show the local number but the callback number or no number. So he gets charged. Only a local caller id does not get charged.

So the callback solution he is looking for should shown the number of the local phone as the callback number.

As far as I know there is no ready made callback card solution like that. Only a do it yourself solution like I pointed out above should be able to do that.