DS-0 Service is a 64 Kbps, dedicated digital interexchange channel service. Using DDS digital local access, DS-0 Service will support the synchronous transmission of full duplex digital data a 2.4, 4.8, 9.6, or 56 Kbps. Combining digital local loops with an all-digital interexchange channel results in an end-to-end private line capable of practically error-free transmission.