ISDN over IP

ISDN over IP is an Integrated Services Digital Network (ISDN) based on the Internet Protocol (IP). In contrast to other variants of IP telephony , Agfeo's technology not only implements the B channels , but also the D channel , which means that switching performance features are available, with the exception of callback on busy (CCBS). Creating a complete ISDN in this way, the lowest protocol layer of which is provided by another network, conforms to the reference model of the International Telecommunication Union .

ISDN over IP enables multiple telephone systems to be linked via the Internet and home offices to be connected without the spatial distances being perceptible afterwards.

literature

Jochen Nölle: Voice over IP: Basics, protocols, migration . 2nd Edition. VDE-Verlag, Berlin, Offenbach 2005, ISBN 3-8007-2850-8
André Liesenfeld: Unified Communication Practical Guide Hanser, 2010, ISBN 3-446-41834-2 .

Individual evidence

↑ Transfer of all the channels of a S ₀ interface using a transparent network adapter that allows connection of all known ISDN end devices in an unmodified way to an IP LAN network without modification of the transfer protocol . European Patent Office . July 25, 2002. Retrieved August 2, 2012.
↑ Michael Spehr in the Frankfurter Allgemeine Zeitung of July 7, 2015, page T1
↑ ISDN Protocol Reference Model . ITU. S. Nov. 3, 1993. Retrieved August 2, 2012.

[1] Transfer of all the channels of a S ₀ interface using a transparent network adapter that allows connection of all known ISDN end devices in an unmodified way to an IP LAN network without modification of the transfer protocol . European Patent Office . July 25, 2002. Retrieved August 2, 2012.

[2] Michael Spehr in the Frankfurter Allgemeine Zeitung of July 7, 2015, page T1

[3] ISDN Protocol Reference Model . ITU. S. Nov. 3, 1993. Retrieved August 2, 2012.