Synonymous with basic rate interface (BRI) and basic rate access (BRA). Referring to the ITU-T specification for an ISDN interface supporting two bearer (B) channels and one data (D) channel. See also ISDN and BRI.
"2B+D." YourDictionary, n.d. Web. 07 June 2018. <http://www.yourdictionary.com/2b-d>.
2B+D. (n.d.). Retrieved June 07th, 2018, from http://www.yourdictionary.com/2b-d