Integrated Services Digital Network (ISDN); user-network interface layer 3; specification for basic call control; english version ETS 300102-1:1990
€150.65
Integrated Services Digital Network (ISDN); user-network interface layer 3; specifications for basic call control; Specification Description Language (SDL) diagrams; english version ETS 300102-2:1990
€98.32
Integrated Services Digital Network (ISDN); support of CCITT recommendation X.21, X.21bis and X.20bis based Data Terminal Equipments (DTEs) by an ISDN; synchronous and asynchronous terminal adaption functions; english version ETS 300103:1990
Integrated Services Digital Network (ISDN); attachment requirements for terminal equipment to connect to an ISDN using ISDN basic access; layer 3 aspects; english version ETS 300104:1991
Integrated Services Digital Network (ISDN); user-network interface data link layer specification; application of CCITT recommendations Q.920/I.440 and Q.921/I.441; english version ETS 300125:1991
Integrated Services Digital Network (ISDN); 3,1 kHz telephony teleservice; end-to-end compatibility requirements for telephony terminals; english version ETS 300082:1992
€77.20
Integrated Services Digital Network (ISDN); Multiple Subscriber Number (MSN) supplementary service; service description; english version ETS 300050:1991
€41.78
Integrated Services Digital Network (ISDN); Multiple Subscriber Number (MSN) supplementary service; functional capabilities and information flows; english version ETS 300051:1991
Integrated Services Digital Network (ISDN); Terminal Portability (TP) supplementary service; service description; english version ETS 300053:1991
Integrated Services Digital Network (ISDN); Terminal Portability (TP) supplementary service; functional capabilities and information flows; english version ETS 300054:1991
Integrated Services Digital Network (ISDN); Call Waiting (CW) supplementary service; service description; english version ETS 300056:1991
Integrated Services Digital Network (ISDN); Subaddressing (SUB) supplementary service; service description; english version ETS 300059:1991
Integrated Services Digital Network (ISDN); Subaddressing (SUB) supplementary service; functional capabilities and information flows; english version ETS 300060:1991
Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; service description; english version ETS 300062:1991
Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; functional capabilities and information flows; english version ETS 300063:1991
