Abstract
The preamble to the CCITT I series recommendations succinctly defines an ISDN as follows:
“An ISDN is a network, in general evolving from a telephony Integrated Digital Network (IDN), that provides end-to-end digital connectivity to support a wide range of services, including voice and non-voice services, to which users have access by a limited set of standard multi-purpose user-network interfaces”.
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© 1993 Springer Science+Business Media Dordrecht
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Brewster, R.L. (1993). Introduction. In: ISDN Technology. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1592-6_1
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DOI: https://doi.org/10.1007/978-94-011-1592-6_1
Publisher Name: Springer, Dordrecht
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