ISDN BRI consists of a PCI/PCIe card and a Windows client application. MultiDSLA is configured to connect to the client and can then perform tests on the two 64kbps ISDN BRI channels.

ISDN BRI connects digitally into a TDM telephone network; it ensures that no noise is picked up in the analogue access network and that echo conditions are controlled on the testing side.

Technical Specification

Signalling Protocols

  • DSSI (Euro-ISDN)
  • NI-1 (North American National ISDN 1)
  • 5ESS (North America)
  • 1TR6 (Germany)
  • INS Net 64 (Japan)
  • VN3 (France)
  • CT1 (Belgium)
  • QSIG


  • G.711 a-law
  • G.711 ยต-law


  • 1 x RJ-45 connectors
  • PCI rev 2.2 or PCI Express
  • Standard Bracket (180.96mm x 120.88mm) or Low Profile Bracket (181.36mm x 80.06mm)

Operating Systems

  • Windows XP 32 bit, 512MB RAM
  • Windows Vista 32 bit
  • Windows 7
  • Windows Server 2008
  • Windows Server 2003

Minimum Processor Specification

  • Intel Core Duo, 2GB RAM