MFC-8870DW FAQs & Troubleshooting MFC-8870DW Not your product? Sort by: Updated Date Popularity 3 Results 1. 01/20/2014 I'm using Voice Over Internet Protocol (VoIP) and am having problems receiving faxes. 2. 04/25/2013 Why doesn't the machine answer when receiving a call? 3. 12/18/2008 I am having a problem receiving faxes. What can I do? Fax FAQs & Troubleshooting