You buy a handset, and you buy a card, e.g. of $50, then you can talk for this amount. When you use out all this $50, you can re-fill your account with another $50.
For details, check:
http://fido.ca/
and see the "fidomatic" section.
Good luck.
For details, check:
http://fido.ca/
and see the "fidomatic" section.
Good luck.