VoIP adapter

[Nymph]

I can't get my flipping fax to send out since I moved. I called the cable company that I have my connection through, and they are telling me it's because I have an analog fax, trying to send through a digital signal. I have never had this problem before, and have used in the past both cable modem, and DSL.

I was wondering if anyone could suggest an adapter that I could use between the fax, and phone line that would work?