Details: The iNT+ is an ISDN Basic Rate Termination unit. The connections to the telephone Exchange is via the existing 2 wire telephone line. In addition to the ISDN terminals connected to S-bus. One S-interface can work as serial interface to provide for services management of the system . Ascom has long since recognised the market demand for a standardized interface. Thanks to the already available "Intelligent" in the iNT+, additional software options can be loaded and activated any time during operations.