Definitions for "Digital Data Service"
Low-cost, digital connections for transmitting simultaneous two-way synchronous data at speeds of 2.4, 4.8, 9.6, 19.2, 56 and 64 Kbps. Learn more.
A digital transmission service supporting speeds up to 56K bps.
DDS is a term normally used by the Local Exchange Carrier to signify 56K service.