2007LST EN 302 092-3 V1.1.1-2007 Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN);Digital Subscriber Signalling System No. two (DSS2), Broadband Inter-Exchange Signalling (B-QSIG), and Signalling System No. 7 (SS7);Call con