Is there a way to use a fax machine and separate phone with vonage?
Yes, but I suggest you use online faxing. Doing so will allow to be able to fax while using your voip phone. Services such as RingCentral combine online faxing and voip phone service in one package. Plus you can try if FREE for 30 days http://onlinefaxfree.net/voip-and-fax.ht… This solution worked for me, now I can receive and send faxes 24/7 with out worrying about missing a call or voice mail.