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Telecommunication system and method for implementing an ISDN PBX interface

  • US 6,345,091 B1
  • Filed: 08/17/2000
  • Issued: 02/05/2002
  • Est. Priority Date: 02/19/1998
  • Status: Expired due to Term
First Claim
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1. Telecommunication system comprising a telephone exchange (1) provided with ISDN properties, including an information channel B and a signalling channel D, a primary rate interface (2) connected to the telephone exchange (1), a private branch exchange interface (3) communicating with the telephone exchange (1), and an ISDN private branch exchange (4) connected to the telephone exchange via the PBX interface, characterised in that the system comprises means (6) for dividing the primary rate interface (2) into at least two PBX interfaces (3, 3

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