When using TOT to call abroad, there are different prefixes to use (I forget the details, such as 008 for example) some which give you a discount on the call. Is there a better (or no) prefix to use for data (like a fax) and will the discount prefixes work fine also with data?

I've been using 007 on a TOT line for fax and voice calls without problems for quite some time. It is cheap depending on the country called.

opalhort