I would appreciate if someone could recommend a solution for this:

I have an excel spreadsheet with customer info including fax numbers.  I'd
like to create mail merged documents and have them faxed to each respective
fax number from the spreadsheet (one of the merged fields is 'FaxNumber').  
No cover letter will be required - just the mail merged doc.

No problem doing the mail merged doc, but what fax solution should I get to
do the faxing? I dont want to have to enter a fax number for each document -
I am looking for a solution that will somehow be able to send to the fax
number (a merged field) on the document (each page has a different fax number
as each page is a different customer).

Thank you!