Bulk Fax Who Knows Or Can Recommend A Bulk Fax Software?

Who knows or can recommend a bulk fax software? - bulk fax

I need a fax software that will help me send a fax to my client in bulk can. I hope it will only work
1) a computer
Fax software 2)
3) a telephone line or Internet access, or both.

Is installed with the fax software on your computer, I'll be able to list the fax number to send (what) my client / customer, via telephone or Internet.

Can someone please advise and recommend.

Thank you,