Stage 3 Service Description for Call Offering Supplementary Services Using DSS 1 - Diversion Supplementary Services - Digital Subscriber Signalling System No. 1 (Study Group XI) 69 pp
This Recommendation specifies the stage 3 of the diversion supplementary services for the Integrated Services Digital Network (ISDN) as provided by public telecommunications operators at the T reference point or coincident S and T
reference point (as def