Information technology. Telecommunications and information exchange between systems. Private telecommunications networks. Digital channel aggregation
€404.00
Public switched telephone network. Recommendation upon telephone traffic flows in private communication systems.
€65.33
Information technology - Telecommunications and information exchange between systems - Broadband Private Integrated Services Network - Inter-exchange signalling protocol - Transit counter additional network feature
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Network Aspects (NA) - Universal Personal Telecommunication (UPT); Phase 1 - Service description; English version ETS 300779:1997
€63.27
Universal Personal Telecommunication (UPT) - Security architecture for UPT phase 2 - Specification; English version ETS 300790:1997
€91.03
Universal Personal Telecommunication (UPT) - Security architecture for UPT phase 2 - Conformance Test Specification; English version ETS 300791:1997
€77.20
Télécommunications - Télécommunications personnelles universelles (UPT). Dispositifs d'accès - Émetteur multifréquence bitonalité (DTMF) pour couplage acoustique au microphone d'un combiné téléphonique.
Information technology. Telecommunications and information exchange between systems. Broadband private integrated services network. Inter-exchange signalling protocol. Signalling ATM adaptation layer
€269.00
Information technology. Telecommunications and information exchange between systems. Broadband private integrated services network. Inter-exchange signalling protocol. Basic call/connection control
Information technology. Telecommunications and information exchange between systems. Private integrated services network. Specification, functional model and information flows. Route restriction class additional network feature
€193.00
Information technology. Telecommunications and information exchange between systems. Private integrated services network. Inter-exchange signalling protocol. Route restriction class additional network feature
Public Switched Telephone Network (PSTN) - Calling Line Identification Presentation (CLIP) supplementary service - Service description; English version ETS 300648:1997
€41.78
Public Switched Telephone Network (PSTN) - Calling Line Identification Restriction (CLIR) supplementary service - Service description; English version ETS 300649:1997
Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Universal Access Number (UAN) service - Service description; English version ETS 300710:1997
Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Virtual Card Calling (VCC); service description; English version ETS 300711:1997
