MFC-9450CDN FAQs & Troubleshooting MFC-9450CDN Not your product? Sort by: Updated Date Popularity 3 Results 1. 19/09/2014 Why doesn't my Brother machine have a dial tone? 2. 25/04/2013 Why doesn't the machine answer when receiving a call? 3. 15/06/2010 I can receive a fax, but cannot receive a telephone call. Telephone FAQs & Troubleshooting