MFC-4800 FAQs & Troubleshooting MFC-4800 Not your product? Sort by: Updated Date Popularity 3 Results 1. 18.05.2012 Change or delete an existing Speed Dial number. 2. 18.05.2012 Store Speed Dial numbers on my Brother machine for easy dialing. 3. 13.01.2009 What is Distinctive Ring and how do I program it? Telephone FAQs & Troubleshooting