MFC-685CW FAQs & Troubleshooting MFC-685CW Not your product? Sort by: Updated Date Popularity 3 Results 1. 05/15/2013 I am using Voice Over Internet Protocol (VoIP) and I'm having problems receiving faxes. 2. 04/25/2013 Why doesn't the machine answer when receiving a call? 3. 05/24/2006 I cannot receive a color fax. Why? Fax FAQs & Troubleshooting