Federal Relay Services
Federal Relay Customer Service: 1-800-877-0996 (Voice, TTY, ASCII or Spanish)
Inquiries about Changes from "Centralized Billing" to "Direct Billing", Validation of Users, "Calling From/Calling To" User Information or Contract Requirements. Contact GSA - Federal Relay Program: (703) 306-6308
Federal Relay is managed by General Services Administration (GSA) and provided by Sprint.