Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Inter-exchange signalling protocol; Call intrusion supplementary service
German title
Informationstechnik - Telekommunikation und Informationsaustausch zwischen Systemen - Private diensteintegrierende Netze - Zeichengabe zwischen Telekommunikationsanlagen - Zusatzdienste für Anrufaufschaltung
Publication date
2003-04
Original language
English
Pages
64
Publication date
2003-04
Original language
English
Pages
64
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