DIN ETS 300667-1 : 1997 Title: Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol; Subaddressing (SUB) supplementary service - Part 1: Protocol specification [ITU-T Recommendation Q.2951, clause 8 (1995), modified]; English version ETS 300667-1:1996 Year: 1997 Publisher: DIN Media GmbH Availability: Within 1-2 working days