Digital Subscriber System No. 2 From Wikipedia, the free encyclopedia Digital Subscriber Signalling System No. 2 (DSS2), as the successor to DSS1,[1] is also a digital signalling protocol (D channel protocol) used for the B-ISDN. References [1]Integrated Services Digital Network (ISDN); User-network interface layer 3 Specifications for basic call control This article related to telecommunications infrastructure is a stub. You can help Wikipedia by adding missing information.vte Related Articles
