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ISDN distribution, concentrating, multiplexing and switching CXR proposes an offer of ISDN multiplexer/switch between BRI/PRI , PRI/PRI making it possible to deploy the access voice and data in a private environment as well for the operators to deploy ISDN over wire, PDH existing network or wireless local loop. This equipment are intended to manage simultaneously many calls of voice, data from routers or videoconferencing systems. They give to the system integrator the solution to implement an ISDN over a private TDM infrastructure with a bandwidth on demand by the ISDN switching.
The CB2000 is a concentrator of basic rate access in primary rate access or a "channel bank", available from 16 or 32 BRI to 1 or 2 PRI. One of the PRI could be choose as a public or private main access. The CB2000 concentrate the calls of interfaces BRI and PRI and allows the switching between them locally or towards the public network. The incoming calls are managed with DI selections and services with 3 levels. The PR8000 is a concentrator of 8 PRI set-up as a network (NT) or terminal (TE). The PR8000 is a node of ISDN switching between with the function of exchanging the phone number (List Cost Routing LCR). This equipment allows to share occasionally the PRI interface of the PABX for the voice with the ISDN back-up of routers connected to a leased line or an Internet access and the Videoconference system. This equipment makes it possible to avoid lease of high cost PRI for a limited use during the year. The PR8000 is also able to manage the direct physical access to few operators or even to process the redirection by prefix exchange in order to manage the costs reduction of communications. The CB2000 and the PR8000 own the capability to set up of an ISDN network over a PDH infrastructure with copper, fibber or radio links together with PDH or SDH CXR multiplexer without connexion to a public network ISDN.
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