It's always tough to test your fax machine or fax program if you cannot find a friend at home, with a fax machine and who's willing to help.
HP has a site where you can send a fax, and if the fax is good, will send you a return fax in minutes.
Make sure the fax number in the Return Fax Number header is the same as the caller ID on the originating phone ( a security feature)
HP Fax Test Site
HP has a site where you can send a fax, and if the fax is good, will send you a return fax in minutes.
Make sure the fax number in the Return Fax Number header is the same as the caller ID on the originating phone ( a security feature)
HP Fax Test Site