MFC-9660 FAQs & Troubleshooting MFC-9660 Not your product? Sort by: Updated Date Popularity 3 Results 1. 11/04/2011 Change or delete a Group. 2. 17/02/2009 How do I adjust the settings of the ring volume, beeper volume and speaker volume on my Brother machine? 3. 03/02/2009 How do I store One Touch or Speed Dial numbers on my Brother machine for easy dialing? More FAQs Telephone FAQs & Troubleshooting