ITU SERIES Q SUPP 25:1999 Supplement To Itu-t Q.2900 Series Recommendations: Broadband Integrated Services Digital Network (b-isdn) - Digital Subscriber Signalling System No. 2 (dss2) User-network Interface Layer 3 - Overview Of B-isdn Dss2 Signalling Capabilities Provides an introduction to the capabilities included in the access signalling protocols for the Broadband Integrated Services Digital Network. It includes an overview of the capabilities supported, a