242N TELEKOMUNIKACE a.s., www.2n.cz®2.3 Available ISDN BRI ExtensionConfigurationsYou have to know the way of connection of your ISDN devices in order to configureyour GSM gateway correctly. For information on your2N BRI Enterprise / BRI Lite®ISDN type, check your ISDN extension provider's registration form or contact yourtelephone network administrator.Point–to–Point ConfigurationThe Point–to–Point (EuroISDN with DDI) configuration interconnects directly one ISDNterminal (TE) and a network terminal (NT) (see the figure below). This type is appliedmainly where PBXs are connected to the ISDN.Point–to–Multipoint ConfigurationPoint–to–Multipoint (EuroISDN with MSN) is another type of ISDN terminalinterconnection. Here the network terminal (NT) is interconnected with up to eightISDN terminals through a 4–wire passive bus as shown in the figure below.
