Integrated Services Digital Network (ISDN) - Multiple Subscriber Number (MSN) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification; english version ETS 300052-1:1991
€41.78
Integrated Services Digital Network (ISDN) - Terminal Portability (TP) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification; english version ETS 300055-1:1991
Integrated Services Digital Network (ISDN) - Call Waiting (CW) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification; english version ETS 300058-1:1991
Integrated Services Digital Network (ISDN) - Subaddressing (SUB) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification; english version ETS 300061-1:1991
Integrated Services Digital Network (ISDN) - Direct Dialling In (DDI) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification; english version ETS 300064-1:1991
Integrated Services Digital Network (ISDN); CCITT signalling system no. 7; Message Transfer Part (MTP) to support international interconnection; english version ETS 300008:1991
€77.20
Integrated Services Digital Network (ISDN); ISDN Packet Mode Bearer Services (PMBS); ISDN Virtual Call (VC) and Permanent Virtual Call (PVC) bearer services provided by the B-channel of the user access; basic and primary rate; english version ETS 300048:1992
Integrated Services Digital Network (ISDN); ISDN Packet Mode Bearer Services (PMBS); ISDN Virtual Call (VC) and Permanent Virtual Call (PVC) bearer services provided by the D-channel of the user access; basic and primary rate; english version ETS 300049:1992
Integrated Services Digital Network (ISDN); Calling Line Identification Presentation (CLIP) supplementary service; service description; english version ETS 300089:1992
Integrated Services Digital Network (ISDN); Calling Line Identification Restriction (CLIR) supplementary service; service description; English version ETS 300090:1992
Integrated Services Digital Network (ISDN); Connected Line Identification Presentation (COLP) supplementary service; service description; english version ETS 300094:1992
Integrated Services Digital Network (ISDN) - Connected Line Identification Restriction (COLR) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification; English version ETS 300098-1:1992
Integrated Services Digital Network (ISDN) - Generic keypad protocol for the support of supplementary services - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification; english version ETS 300122-1:1992
Integrated Services Digital Network (ISDN) - Malicious Call Identification (MCID) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification; english version ETS 300130-1:1992
Integrated Services Digital Network (ISDN) - Closed User Group (CUG) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification; english version ETS 300138-1:1992
