MFC-9660 FAQs & Troubleshooting MFC-9660 Not your product? Sort by: Updated Date Popularity 3 Results 1. 17.12.2014 Change or delete a Group stored at a One Touch/Speed Dial. 2. 13.04.2011 How do I store numbers on my Brother machine for easy dialing? (One Touch, Speed Dial) 3. 12.02.2009 How do I adjust the settings of the ring volume, beeper volume and speaker volume on my Brother machine? Telephone FAQs & Troubleshooting