Communication Services for the Deaf is a non-profit company based in Sioux Falls, South Dakota that provides services nationwide, and is a major provider of Telecommunications Relay Service and Video Relay Service in cooperation with Sprint Nextel.
Communication Services for the Deaf is a non-profit company based in Sioux Falls, South Dakota. This South Dakota provides services nationwide. This South Dakota is a major provider of Telecommunications Relay Service. This South Dakota is Video Relay Service in cooperation with Sprint Nextel.