FAX-878 FAQs & Troubleshooting FAX-878 Not your product? Sort by: Updated Date Popularity 3 Results 1. 11/19/2012 I have my FAX machine set in the FAX/TEL (F/T) answer mode. What happens if I do not answer the telephone and it's a non fax call? 2. 11/19/2012 What does the pseudo-ring (double ring) indicate in the F/T Mode? 3. 10/01/2008 How does the "FAX/TEL" Mode work? Telephone FAQs & Troubleshooting