STS Cookeville Regional Support Group Raleigh Betterton | Contractor Office: 931-372-7129 David Dingley | STS Workstation Support Office: 931-646-3009 Mobile: 931-239-3718 david.dingley@tn.gov Scott Martin | Workstation Specialist Advanced Office: 931-520-2475 Mobile: 931-881-4327 scott.martin@tn.gov James Oakes | End Point Services Office: 931-646-3008 Mobile: 615-305-9137 How was my service?