The Constituent Services Office manages the Department of Human Resources’ Statewide Call Center. The Call Center provides a variety of information ranging from office locations and telephone numbers to explanations of program policies and procedures. Through dedicated hotlines and a sophisticated telephone system, CSO staff link people in need with the service(s) they seek. Customers dial one number to contact the Department of Human Resources: 800-332-6347. For TTY, dial the Maryland Relay Service: 800-735-2258.