Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Reexamination Certificate
2006-12-26
2006-12-26
Pham, Chi (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
C370S395200, C370S231000, C370S232000
Reexamination Certificate
active
07154908
ABSTRACT:
The invention describes a novel private branch exchange and the migration solution with respect to existing devices. Communication connections are established via a transport network, the control takes place in a centralized manner by means of a central control device, which is connected to the decentralized switching devices and the interface modules via a two-stage connection, a collection and distribution of the control messages being carried out in a decentralized manner and the control connection from the respective decentralized device to the central control being provided by an ATM network or an Ethernet connection.
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patent: 5953337 (1999-09-01), Almay
patent: 6222823 (2001-04-01), Smith et al.
patent: 6876658 (2005-04-01), Epley
patent: 44 17 777 (1995-11-01), None
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F. Allard “Broadband virtual private network signalling” Technol. J. 16(2):112-119, Apr. 1998.
Emmerink Antonius
Klein Egon
Steffan Andreas
Windecker Rainer
Winkler Steffi
Abelson Ronald
Pham Chi
Siemens Aktiengesellschaft
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