[Stu]

If you don't have Asterisk, take a look at easypabx.com, pbxes.com, and voxalot.com. These are voip service aggregators. You can signup for various services, point them to these services and then connect to them in a variety of ways. Assume, for the sake of argument that you live in Italy and use an IOM SIM. You can get an Italian DID from VOIPbuster and then find a cheap VOIP provider to an IOM number. You can then program the Italian number to forward to IOM via the VOIP provider de jour. Some of them also offer callback services.

Lastly, you can tie these numbers into sipbroker and get dialins from other countries via an "extension style system." You can also create your own virtual calling card system through this approach.

stu