If this is a user driven report (the user runs it and decides when and who to fax it to), you can use Winfaxpro.

In your code to run the report use:

report form myreport to print prompt

The prompt keyword will call up the Windows print dialog. Choose Winfax and supply the phone number when requested.

If you need to have it fax the report without user intervention (like faxing many invoices to different customers) you will probably have to set up a DDE conversation between Foxpro and Winfax. This will allow you to "push" a phone number into Winfax and then print the report. If you have to do this, email me back and I will dig up some sample code that worked once for me.